ComfyArc Unlined Outside Underwire Racerback Sports Bra
Product Details
Engineered for the woman who moves. Specially designed for fuller figures (C-I cups), the ComfyArc Unlined Sports Bra has earned its reputation as the best sports bra for large breasts. It proves that you don't need thick, suffocating foam to get the dependable, bounce-free support you crave.
We completely reimagined the traditional sports bra to eliminate the post-workout struggle and chafing. Featuring an innovative outside-underwire construction and a fully adjustable hook-and-eye closure, you can finally say goodbye to wire poking and the frustration of peeling off a tight, sweaty pullover bra. Crafted from premium, high-stretch moisture-wicking fabric, this racerback sports bra delivers a bulk-free, cooling fit. With its vibrant colorblock design and complimentary modesty accessories, you'll feel fierce, fresh, and fully supported from the weight room to your weekend cycling route.
Why Your Curves Will Love It:
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Friction-Free Outside Underwire: We flipped the script! The underwire is innovatively placed on the outside of the cups. This genius design makes it the ultimate underwire sports bra, preventing the wire from directly contacting your skin and completely eliminating digging or irritation while delivering heavy-duty lift and separation.
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Modesty on Your Terms (Bonus Included): Love the cooling feel of an unlined bra but worry about show-through? We've got you covered. Every ComfyArc bra comes with complimentary nipple covers and modesty pads, giving you the flexibility and confidence to wear it exactly how you want.
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Bulk-Free Cooling Comfort: Skip the heavy, sweat-absorbing padding. Our single-layer cups (64% Nylon, 36% Spandex) are incredibly soft, flexible, and lightweight, making this the ideal unpadded mesh sports bra to allow your skin to breathe during intense training.
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Targeted Mesh Ventilation: The sporty back isn't just for unrestricted shoulder movement. Rated by our wearers as the best racer back bra for large breasts, it features a specialized, high-stretch power mesh that acts as a targeted cooling zone to instantly release trapped heat and maximize airflow.
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Easy On/Off Custom Fit: No more locker room wrestling matches. Fully adjustable shoulder straps and a multi-row hook-and-eye back closure ensure a customized, secure fit for a bigger chest?agoing on and coming off in seconds.
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Vibrant Colorblock Aesthetics: Who says supportive has to be boring? The energetic color-contrast design brings a bold, dynamic edge to your activewear wardrobe, making it perfect to wear solo or layered under a tank.
Materials & Care
Shipping & Returns
Handling Time
In general case, please allow us to take up to 2 business days to prepare the package.
Shipping Methods
| Countries | Shipping Options | Delivery Time (Business Days) | Orders $50+USD (Include $50 USD) | Orders less than $50 (USD) |
| United States | Standard Shipping | 5-12 Days | Free | $6.99 USD |
| Japan | International Shipping | 5-12 Days | Free | ¥1,100 JPY |
| Canada | International Shipping | 5-12 Days | Free | $10.00 CAD |
| United Kingdom | International Shipping | 6-10 Days | Free | £6.00 GBP |
| Switzerland | International Shipping | 6-12 Days | Free | CHF 6.00 |
| European Union | International Shipping | 6-12 Days | Free | €8.95 EUR |
| Australia | International Shipping | 10-15 Days | Free | $11.00 AUD |
| Saudi Arabia | International Shipping | 8-12 Days | Free | SAR27.00 |
Free Shipping Eligibility
Enjoy free standard shipping on all HSIA intimate apparel orders totaling $50 USD or more.
International Orders
For customers in countries outside the U.S. purchasing with non-USD currencies:
- Order values must convert to $50 USD or more to qualify for free shipping
- Exchange rates are calculated based on the daily international exchange rate (reference table provided for estimation purposes only)
Standard Shipping Fees
Orders below the $50 USD threshold:
- $6.99 USD shipping fee for U.S. addresses
- International shipping fees calculated at checkout based on converted USD value
Delivery Restrictions
We currently cannot ship to:
- APO/FPO addresses
- U.S. territories: Puerto Rico, Guam, U.S. Virgin Islands
SHIPMENT TRACKING
You will be notified by email automatically with the tracking number and tracking way once your order is marked as fulfillment status. Or you can directly reach out to us via contact form.
WRONG ADDRESS
We know mistakes do happen! Please email us immediately! We can only fix this for you if the order has not been shipped out yet.
LOST OR STOLEN PACKAGES
If you believe that your package was lost or stolen, please directly reach out to us via contact form.
DUTIES AND TAXES
Customers shall be responsible for customs clearance, Duty and Tax. All international packages may be subject to duties and taxes. The limits for duty-free packages are established by your local customs authorities. Please check your local customs website for more information.
- Rated 5 out of 5 stars19 minutes agoSo Good I Had to Buy Two! Absolutely Love This Bra!
I absolutely love this bra! I originally purchased one and liked it so much that I had to get another. I now own both the navy blue and black, and I couldn’t be happier with my purchases!
Finding a good bra that offers the right combination of comfort, support, and everyday practicality can be challenging, especially when you’re looking for something that provides good coverage. This bra has definitely become one of my favorites, and I love having two different colors to choose from.
One thing I really appreciate is that this bra is designed to provide support without sacrificing comfort. I also love that the style is simple and versatile enough for everyday wear. The navy blue and black are both great color options because they can easily go with different outfits.
I’m someone who believes that when you find a product you genuinely love, it’s worth purchasing more than one, and that’s exactly how I feel about this bra! I don’t usually feel the need to buy multiples of the same item unless I’m really satisfied with it.
Overall, I’m extremely happy with this purchase and would absolutely recommend giving this bra a try if you’re looking for a supportive, practical option. I would definitely consider purchasing more colors in the future. Five stars from me!
HAHome A. - Rated 5 out of 5 stars4 days ago5 Stars
Love the fit!! I will be back!
RR. - Rated 5 out of 5 stars6 days ago5 Stars
Très confortable et surprise.
j’aime le fait que les bandes passent haut sous les aisselles. tissu doux et les bretelles restent en place !
CCarole - Rated 5 out of 5 stars6 days ago5 Stars
Très confortable et surprise.
j’aime le fait que les bandes passent haut sous les aisselles. tissu doux et les bretelles restent en place !
CCarole - Rated 5 out of 5 stars1 week agoIn Love
As a large chested woman this bra wears wonderful. It’s doesn’t dig in my sides & fully covers me.
SLSunshine L.Verified Buyer
HSIA SIZE GUIDE
Sister Sizes: —
Select both measurements to see your recommended HSIA size.
Not sure how to measure? Please learn our Size Guide or Contact us
| Under Bust | ||||||
|---|---|---|---|---|---|---|
| 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 | |||||
| Under Bust | |||||
|---|---|---|---|---|---|
| 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 | ||||
Frequently Asked Questions
What size am I? How do I measure my bra size?
Fit and sizing can be tricky when shopping online. We totally feel you! We’ve tried our best to create a size calculator, which you can find on each product page. Also, you can visit our BRA CALCULATOR page.
What are my shipping options (and prices)?
For all US orders over $50, you can choose this option:
Standard Shipping: Free (5-12 business days)
Currently, we offer one option for all US orders less than $50:
Standard Shipping: $6.99 (5-12 business days)
NOTE: We currently UNABLE ship to APO/FPO addresses. U.S. Protectorates/Territories, Puerto Rico, Guam and Virgin Islands.
OUTSIDE the United States :
We only offer International Shipping. If you order less than $50, the fee will be $6.99.*
The shipping time varies from region to region. Please see the exact shipping cost and delivery time on the actual payment page.
* The shipping fee may vary or be FREE while the website is going with a Shipping Promotion.
How do I track my order?
After you placed your order, we sent you a confirmation email / text message with your purchase (depending on which of the two you chose to give us during checkout).
Once your order has shipped and is on its way to you, we'll send a confirmation email with the tracking number, so you can follow its progress. Didn't receive confirmation? Please click this TRACKING LINK. Contact our customer service service@hsialife.com
Can I cancel or modify (all or part of) my order after it is placed?
Please contact us at service@hsialife.com during 24 hours to modify or cancel the order.
*Since we start to process your order shortly after it is placed, in many cases it is not possible to change or modify. But we will do our best to accommodate any changes. Please understand however that this is not always ‘possible’. If you are unable to cancel within that time frame, you may return or exchange your order after you receive it.
Can I exchange or return the product?
Please go to RETURNS & EXCHANGES for more details.
