SUMMER SALE - UP TO 55% OFF
Amiyah | Elegant Long Set
Low in stock — 3 items left, ready to ship
UPDATE: Due to high demand during our Pre Halloween Sale, only 7 units are still available at the current price!
Complete the set
Amiyah | Elegant Long Set
Embrace refined sophistication with the Amiyah Elegant Long Set, a chic ensemble designed for modern elegance. This coordinated outfit blends graceful lines with a relaxed silhouette, offering a look that’s both timeless and fashion-forward. Ideal for upscale dinners, special events or stylish everyday wear, it’s a set that exudes confidence and poise.
Why You'll Love It:
- Polished Two-Piece Design: A seamless pairing of top and trousers for an instantly elegant outfit.
- Elongated Silhouette: Longline elements create a flattering and lengthening effect.
- Minimalist Elegance: Clean lines and subtle tailoring for a sleek, modern look.
- Comfortable Fit: Soft stretch and breathable wear make it ideal for all-day style.
- Effortlessly Versatile: Dress it up with heels or down with flats for any occasion.
The Amiyah Elegant Long Set is the ultimate statement in understated luxury. Add this versatile piece to your wardrobe and elevate your everyday style with ease and elegance.
Shipping & Returns
- Free Express shipping on AUS orders over $150
- International shipping & duties charges calculated at checkout
- Carbon-Neutral Shipping
- All of our packaging is plastic-free and recyclable. If you have curbside recycling in your area, you should be able to pop all of our packaging in the bin, but you can use How2Recycle to double check!
For more info on shipping, returns, & international orders swing by our FAQs
Free Express Shipping
Free Express Shipping for orders over $150 AUD*
Duties & Taxes
All Duties and Taxes are calculated and paid at checkout
30 day returns
We hope you love your new purchase! If it’s not quite right, don’t worry - eligible items can be returned within 30 days.
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The Story Behind the Scenes
our story
Born in Bondi, Sierra Sydney began as a small coastal idea — a brother and sister creating timeless, effortless pieces inspired by the Australian summer. What started with beach photoshoots and local drops has grown into a brand loved nationwide and stocked in beautiful boutiques like Muse Bali.
From Bondi to Bali, our mission remains the same: to design pieces that celebrate confidence, freedom, and effortless femininity.
Muse bingin 📍
Jl. Pantai Bingin, Pecatu 80364, Bali, Indonesia
Muse Pererenan 📍
Jl. Pantai Pererenan No.116, Pererenan, Kec. Mengwi, Kabupaten Badung, Bali 80351, Indonesia
Phenomena Bingin 📍
Jl. Pantai Bingin No.11, Pecatu, Kec. Kuta Sel., Kabupaten Badung, Bali 80361, Indonesia
Or if you can create it a nicer way
Make all the 50% off on the store now 60% off
MORE THAN
5000+ HAPPY CUSTOMERS
We stand for empowering women, boosting their confidence, and helping them shine—no matter their shape or size.
Our customers tell it better than we do!
Excellent
4.7/ 5
Jessica M
“Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!”
Sydney
Emily R
“Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.”
Gold Coast
Chloe T
“So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!”
Sydney
Isabella L
“I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!”
Melbourne
Olivia B
I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly.
Sunshine Coast
Maddie S
“The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!”
Perth
Jessica M
“Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!”
Sydney
Emily R
“Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.”
Gold Coast
Chloe T
“So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!”
Sydney
Isabella L
“I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!”
Melbourne
Olivia B
I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly.
Sunshine Coast
Maddie S
“The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!”
Perth
Jessica M
“Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!”
Sydney
Emily R
“Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.”
Gold Coast
Chloe T
“So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!”
Sydney
Isabella L
“I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!”
Melbourne
Olivia B
I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly.
Sunshine Coast
Maddie S
“The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!”
Perth
Jessica M
“Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!”
Sydney
Emily R
“Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.”
Gold Coast
Chloe T
“So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!”
Sydney
Isabella L
“I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!”
Melbourne
Olivia B
I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly.
Sunshine Coast
Maddie S
“The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!”
Perth
Jessica M
“Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!”
Sydney
Emily R
“Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.”
Gold Coast
Chloe T
“So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!”
Sydney
Isabella L
“I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!”
Melbourne
Olivia B
I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly.
Sunshine Coast
Maddie S
“The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!”
Perth
Jessica M
“Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!” “Sierra Sydney is my new go-to! The fabrics feel so luxurious and everything fits perfectly. I’ve already placed my second order—obsessed!”
Sydney
Emily R
“Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.” “Absolutely stunning pieces! I wore one of their dresses to an event and got compliments all night. The quality and design are next level.”
Gold Coast
Chloe T
“So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!” “So impressed with the fast shipping and gorgeous packaging. You can tell this brand truly cares about the details. Five stars!”
Sydney
Isabella L
“I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!” “I’ve tried so many boutiques and Sierra Sydney is by far the best. The clothes are stylish, flattering, and such amazing quality. Highly recommend!”
Melbourne
Olivia B
I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly. I was initially hesitant to switch from my usual brand to this new one, but I'm so glad I did! This product has exceeded my expectations. It's not only affordable but also incredibly efficient. The quality is top-notch, and it's user-friendly.
Sunshine Coast
Maddie S
“The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!” “The customer service was amazing. They helped me choose the right size and it fits like it was custom made. I’m genuinely blown away by this brand!”
Perth
From the people
From the people
Stacey Lovett, 2025“My package arrived so quickly and the pieces looked even better in person. I’ve already recommended Sierra Sydney to all my friends!”
From the people
Jessica Hevan, 2025“I absolutely love the quality of my Leo Bikini Bottoms.”