My favorite workout top
"My favorite workout top. I ordered 2 more in black because I wear them everyday. So comfortable and so flattering for a small chest"






for all orders over $150 (USD)
within 30 days (exclusions apply)
The original CSB classic, this sports bra is a crowd-favourite for a reason.
- Light-to-moderate support
- Double lined, no padding
- Thick crossed straps for support and comfort
- Flattering twist detail
- Serenity fabric
80% Polyester, 20% Elastane
FREE SHIPPING ON ORDERS OVER $150 USD
Enjoy free standard shipping on all orders with a merchandise subtotal of $150 USD or more. Eligible orders will automatically receive a free shipping option at checkout.
Shipping costs for orders below this threshold are calculated at checkout based on your delivery location and parcel weight.
Duties and taxes are prepaid where available. If included, your selected shipping method will display "Duties & Taxes Prepaid" at checkout.
If this label is not shown, any applicable duties, taxes, or import fees will be payable by the recipient upon delivery.
30-DAY RETURNS
We want you to love your CSB pieces. If something isn't quite right, you can return eligible items within 30 days of delivery for a refund, store credit, or exchange, subject to our return policy.
Refund Eligibility
Please view our full Returns Policy here.
Complete the look

Overall rating: 4.8378377 / 5 from 1554 reviews.
The Serenity Sierra Crop in Navy is celebrated for its flattering fit, high-quality fabric, and excellent support. Customers love its stylish appearance and the comfort it provides, making it a top choice for sports bras.
Review topics: [size, fit, length, support, waist, fabric, weight, colour, material, look, style, issues, feel, design, quality, stretchy, shape, comfort, cut, pants, customer service, padding, straps, line, coverage, comfy, thickness, addition, detail, neckline].
"My favorite workout top. I ordered 2 more in black because I wear them everyday. So comfortable and so flattering for a small chest"
"Surprisingly very supportive even for running! Love the fit and very comfortable!"
"Forever fav crop, always gets compliments that I’ve had a breast enhancement, whilst serenity and grey for gym can be worn anywhere!"
"Absolutely love this two-tone colour combo! 😍 So flattering, stylish and unique. Definitely one of the best CSB colour combinations!"
"Absolutely love this crop! 😍 Super flattering, comfortable and stylish. The black is so sleek and easy to match — another CSB favourite!"
"Love the color and the fit of this sports bra!"
"loveee so cute cinches perfect fit love this selection perf for pilates yoga treadmill etc"
"Absolutely love this black twist crop! It's so flattering and fits perfectly. The material is really soft, comfortable, and feels great quality. It goes with everything, whether I'm wearing it to the gym or just out and about. Such a staple piece—I know I'll get so much wear out of it!"
"Cannot fault this crop. Perfect cut and style for my build and size whilst still looking chic. Washes well without piling."
"super cute comfy serenity top! works well with HIIT and is great with the girls"