loveee so cute cinches perfect
"loveee so cute cinches perfect fit love this selection perf for pilates yoga treadmill etc"






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.

Overall rating: 4.8376794 / 5 from 1534 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","straps","support","length","weight","fabric","colour","waist","material","design","issues","quality","look","feel","line","shape","comfort","style","addition","cut","customer service","padding","piece","coverage","comfy","thickness","shorts","detail","neckline"].
"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!"
"Favourite style of CSB sports bra. So flattering yet supportive"
"So flattering and supportive, and it fits my D cup boobs really nicely. I would recommend sizing up for the best fit. The cut is super flattering and makes you feel really confident while still being comfortable. 💕"
"super low support and unpadded. Not very flattering and returns are not worth it considering it would cost $10 plus shipping to return a $40 bra"
"The Serenity Sierra Crop is so flattering and comfortable. It has the perfect amount of support for workouts while still feeling really lightweight and easy to wear. The fit is secure without feeling restrictive, which makes it perfect for training sessions or everyday movement"
"Love the fit of this and the fabric has lasted so nicely - a staple for sure!"
"The most flattering crop. Love the two tone. Perfect sizing"
"I love this for my hot yoga and Pilates classes. I’m an instructor and I like that it stays in place. I’m small chested after a explant surgery and I feel like the bra is flattering. Dries quickly so I don’t feel gross and cold after class."
"I looooove this crop. I have worn them out, gone up sizes, down sizes, and I always repurchase no matter where I'm at in life. I haven't worn a bra in years, I've just worn the Sierra. So good. Love love love."