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FLY Y-Back Sports Bra – Olive
SKU: 5900-505-00
£27.00
9 reviews
The bra that flies with you.
The FLY Y-Back Sports Bra delivers sleek, supportive performance. Featuring medium-impact, compressive support, it’s designed for days when you want a secure, streamlined fit. Effortlessly move from runs to workouts to everyday wear in this versatility-minded staple.
Key Features:
✔ Medium-impact support with a double-lined design and internal power mesh for added stability
✔ Built-in brushed elastic underbust band for a secure, comfortable fit
✔ Sleek Y-back straps for unrestricted movement and all-day comfort
✔ Removable cups for customizable shape and coverage
✔ Smooth, premium fabric blend made with 79% recycled polyester and 21% spandex
✔ Sleek Y-back straps for unrestricted movement and all-day comfort
✔ Removable cups for customizable shape and coverage
✔ Smooth, premium fabric blend made with 79% recycled polyester and 21% spandex
Model Details
5'7" – 145 lbs – Size S
5'7" – 145 lbs – Size S
Size Guide
📏 How to Measure Yourself
Measure Your Waist: Wrap a tape around your natural waistline (just above your belly button, where your body bends side to side). Keep the tape snug but not tight. Round up to the nearest inch.
Measure Your Inseam: Measure from the top of your inner thigh (crotch seam) down to the spot on your leg where you want the shorts to end.
1.5–3" = Short/athletic fit | 4–6" = Mid-length | 7–10" = Longer fit
Measure Your Bra Size: Use an unlined, non-padded bra.
Bust: Place the tape around the fullest part of your chest, keeping it straight across your back.
Underbust (Band): Wrap the tape around your ribcage, just under your bust.
| Men's Tops | |
|---|---|
| Size | Chest (in) |
| XS | 29 – 32 |
| S | 32 – 35 |
| M | 35 – 38 |
| L | 38 – 41 |
| XL | 41 – 44 |
| XXL | 44 – 47 |
| Men's Bottoms | ||
|---|---|---|
| Size | Waist (in) |
Hips (in) |
| XS | 26 – 28 | 33 – 36 |
| S | 28.5 – 30.5 | 36 – 38.5 |
| M | 31 – 33 | 38.5 – 41 |
| L | 33.5 – 35.5 | 41 – 43.5 |
| XL | 36 – 38 | 43.5 – 46.5 |
| XXL | 38.5 – 41 | 46.5 – 50 |
| Women's Tops | |
|---|---|
| Size | Chest (in) |
| XXS | 23 – 26 |
| XS | 26 – 29 |
| S | 29 – 32 |
| M | 32 – 35 |
| L | 35 – 38 |
| XL | 38 – 41 |
| XXL | 41 – 44 |
| Women's Bottoms | ||
|---|---|---|
| Size | Waist (in) |
Hips (in) |
| XXS | 22 – 23.5 | 31.5 – 33 |
| XS | 24 – 25.5 | 33 – 35 |
| S | 26 – 28 | 35 – 37.5 |
| M | 28.5 – 30.5 | 37.5 – 40 |
| L | 31 – 33 | 40 – 42 |
| XL | 33.5 – 35.5 | 42.5 – 44.5 |
| XXL | 36 – 38.5 | 44.5 – 47.5 |
| Women's Bras/Crops | ||
|---|---|---|
| Size | Underbust (in) |
Full Bust (in) |
| XXS | 24 – 27 | 26 – 30 |
| XS | 26 – 29 | 29 – 33 |
| S | 28 – 31 | 32 – 36 |
| M | 30 – 33 | 35 – 39 |
| L | 32 – 35 | 38 – 41 |
| XL | 34 – 38 | 40 – 42 |
Between Sizes?
If your measurements fall on the edge of two sizes, consider your preferred level of support:
High-impact activities (running, HIIT, sports) — size down for a compressive, supportive fit.
Everyday or lower-impact wear (lifestyle, casual, yoga, all-day comfort) — size up for a relaxed fit that still offers support.
| Youth Boys' Bottoms | ||
|---|---|---|
| Size | Waist (in) |
Hips (in) |
| XS (6-7) |
22 – 23.5 | 24 – 26.5 |
| S (8-9) |
23.5 – 25 | 26.5 – 29 |
| M (10-12) |
25 – 27 | 29 – 32 |
| L (13-14) |
27 – 29 | 32 – 34.5 |
| XL (15-16) |
29 – 31 | 34.5 – 37 |
| Youth Girls' Bottoms | ||
|---|---|---|
| Size | Waist (in) |
Hips (in) |
| XS (6-7) |
22 – 23.5 | 25.5 – 27.5 |
| S (8-9) |
23.5 – 25 | 27.5 – 29.5 |
| M (10-12) |
25 – 27 | 29.5 – 32.5 |
| L (13-14) |
27 – 29 | 32.5 – 35 |
| XL (15-16) |
29 – 31 | 35 – 38 |
Shipping and Returns
Free shipping on all orders $50+!
How long does it take to ship?
After placing your order, it will be shipped in one business day from our facility in Cary, NC. From there, it depends on the shipping service you selected at checkout and your delivery address. When you place your order you will receive an estimated date of arrival from the shipping providers.
Do you ship internationally?
Yep! We ship anywhere in the world. You can check the prices after putting in your address in the checkout. You will be given different options from shipping providers such as APC and DHL.
How do I track my order?
After placing your order, you will receive a link to your email address with tracking information.
Returns and Exchanges:
If you have any issues whatsoever, feel free to return or exchange your product by sending it back to us or emailing our customer service team. More information can be found in our FAQs.
L
LivL The FLY Y-Back Sports Bra is super comfortable for running. The fit is flattering, the color & design is cute, and it holds everything in place well, even on longer runs.
W
Wanda Ashcraft My great granddaughter loves these. She runs track and wears them all the time. Great quality.
M
Mia Kiser I love it it’s so soft and I love running in it or just wearing it anywhere the only thing I wish is that they had a xxs like the other sports bras.
A
Alexandra Stelzl Love the colour but wish it could match the print of fun shorts. I would say it’s on the more coverage side of sports bras so can not wear with a tank top without it being seen. Still love it
R
Rae Marzilli fits true to size! comfortable for running it all day wear (imo)
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