ComfyArc Unlined Outside Underwire Racerback Sports Bra
ComfyArc Unlined Outside Underwire Racerback Sports Bra
No More Bra Pain
Natural Lift, Enhanced Shape
Never Rides Up, Ever
Invisible Under Any Outfit
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Crafted around the woman who shifts. Purposely designed for fuller figures (C-I cups), the ComfyArc Unlined Sports Bra has earned its reputation as the best sports bra for large breasts. This proves you don't need dense, smothering foam to get the reliable, bounce-free support you want.
We fully rethought the classic sports bra so the post-workout struggle and chafing vanish. With an innovative outside-underwire construction and a fully adjustable hook-and-eye closure, you can finally say goodbye to wire poking and the hassle of peeling off a tight, sweaty pullover bra. Made from premium, high-stretch sweat-drawing fabric, that racerback sports bra gives a bulk-free, cooling fit. With its bold colorblock construction and free modesty accessories, you will feel fierce, crisp, and fully reinforced from the weight room to your weekend bike ride.
Why You'll Love It:
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Friction-Free Outside Underwire: We reversed the script! The underwire sits innovatively on the outside of the cups. This brilliant construction makes it the supreme underwire sports bra, blocking the wire from touching your skin directly and fully eliminating digging or irritation while granting industrial-grade lift and separation.
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Modesty Upon Your Terms (Bonus Enclosed): Love the cooling feel of an unlined bra but worry about show-through? We have you covered. Each ComfyArc bra arrives with free nipple covers and modesty pads, granting you the freedom to wear it exactly how you want.
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Bulk-Free Chilling Comfort: Skip the dense, sweat-soaking padding. Our single-layer cups (64% Nylon, 36% Spandex) feels remarkably soft, flexible, and light, making it the perfect unpadded mesh sports bra so your skin may breathe during fierce training.
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Focused Mesh Ventilation: The sporty back does more than unhindered shoulder movement. Rated by our customers as the best racer back bra for large breasts, that has a dedicated, high-stretch power mesh acting as a focused cooling zone so heat escapes instantly.
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Easy On/Off Tailored Fit: No more locker room wrestling matches. Fully adjustable shoulder straps and a multi-row hook-and-eye back closure guarantee a bespoke, secure fit across a bigger chest—slipping on and coming off within seconds.
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Bold Colorblock Aesthetics: Who claims supportive has to feel dull? The lively color-contrast construction adds a daring, dynamic edge for your activewear wardrobe, making it flawless whether sported solo or layered beneath a tank.
Details
Size guide
Measure your under bust snugly, then your over bust at the fullest point. Find your under-bust column and your over-bust row — the cell where they meet is your size.
| Over Bust | 24-25" | 26-27" | 28-29" | 30-31" | 32-33" | 34-37" |
|---|---|---|---|---|---|---|
| 28" | 28A | |||||
| 29" | 28B | |||||
| 30" | 28C | 30A | ||||
| 31" | 28D | 30B | ||||
| 32" | 28DD/E | 30C | 32A | |||
| 33" | 28DDD/F | 30D | 32B | |||
| 34" | 28G | 30DD/E | 32C | 34A | ||
| 35" | 28H | 30DDD/F | 32D | 34B | ||
| 36" | 28I | 30G | 32DD/E | 34C | ||
| 37" | 28J | 30H | 32DDD/F | 34D | 36A | |
| 38" | 28K | 30I | 32G | 34DD/E | 36B | |
| 39" | 28L | 30J | 32H | 34DDD/F | 36C | 38A |
| 40" | 30K | 32I | 34G | 36D | 38B | |
| 41" | 30L | 32J | 34H | 36DD/E | 38C | |
| 42" | 32K | 34I | 36DDD/F | 38D | ||
| 43" | 32L | 34J | 36G | 38DD/E | ||
| 44" | 34K | 36H | 38DDD/F | |||
| 45" | 34L | 36I | 38G | |||
| 46" | 36J | 38H | ||||
| 47" | 36K | 38I | ||||
| 48" | 36L | 38J | ||||
| 49" | 38K | |||||
| 50" | 38L |
| Over Bust | 38-40" | 41-43" | 44-45" | 46-48" | 49-51" |
|---|---|---|---|---|---|
| 41" | 40A | ||||
| 42" | 40B | ||||
| 43" | 40C | 42A | |||
| 44" | 40D | 42B | |||
| 45" | 40DD/E | 42C | |||
| 46" | 40DDD/F | 42D | |||
| 47" | 40G | 42DD/E | 44A | ||
| 48" | 40H | 42DDD/F | 44B | ||
| 49" | 40I | 42G | 44C | 46A | |
| 50" | 40J | 42H | 44D | 46B | |
| 51" | 40K | 42I | 44DD/E | 46C | 48A |
| 52" | 40L | 42J | 44DDD/F | 46D | 48B |
| 53" | 42K | 44G | 46DD/E | 48C | |
| 54" | 42L | 44H | 46DDD/F | 48D | |
| 55" | 44I | 46G | 48DD/E | ||
| 56" | 44J | 46H | 48DDD/F | ||
| 57" | 44K | 46I | 48G | ||
| 58" | 44L | 46J | 48H | ||
| 59" | 46K | 48I | |||
| 60" | 46L | 48J | |||
| 61" | 48K | ||||
| 62" | 48L |
Measurements in inches. Between two sizes, take the smaller band and the next cup up.
How it fits
True to size. The band should sit level all the way round and stay put when you raise your arms — most of the support comes from the band, not the straps. If the wire sits on breast tissue rather than against the ribcage, go up a cup.
Shipping & returns
Free US shipping on orders over $50. Orders are prepared within 2 business days.
30-day returns: if the fit isn't right, send it back for a full refund.
