Sisters Bra

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Inspired by the engineering of suspension bridges, the Sisters Bra is designed for maximum security, support, and coverage at all points. The name alludes to the sisterhood in its design: two layers of construction working in harmony. An inner layer, which includes unique meshes and molded cups, while attaching those elements to an inner set of straps. This inner layer = encapsulation, supporting each breast. The outer layer and outer straps represent the compression, holding everything in place. The four-strap system more evenly distributes the weight, relieving strap pressure which can often cause pain or welting in the skin. The Sisters Bra is also higher on the neck, to minimize top bounce, with the two layers of mesh at the neck serving both form and function. Learn more about the Sisters Bra on the blog.

How to Determine Your Sports Bra Size


• Straps are covered, padded, and stable for minimal bounce
• 1.5” plush ribbed elastic chest band for comfort and heat management
• Double strap design evenly distributes weight, reducing pressure and pain
• Two layers of power mesh connects cups to inner straps
• Sewn in molded cups with perforation for heat release
• No-stretch power mesh liner to maintain shape and stability
• 2 hook and eye closures with 3 positions for a just-right fit
• Covered pad protects skin from hook and eye closure
• Plush Elastic with custom Oiselle birds design
• Compression level: 3


• Power Plya™ Compression. 78% polyester / 22% Spandex®

Learn more on our Fabrics page.

At Oiselle, our vision is to help all women feel strong and free through the joy of running. Our mission is to design great product, build the sisterhood, and improve the sport. May we all experience the transformative power of sports and community.

Customer Reviews

Based on 24 reviews
Too short

I ordered my band and cup size and I had the hardest time even getting this bra on. There was zero way I was going to get the bra hooked in the back. Also, it barely covered my breasts. Once I did get it "on" the band felt like it was on part of my breast tissue and not below where I thought it should be. I did feel the quality of the product was great, just not the one for me.

Best Runner

This bra is by far the most comfortable high impact bra I own and I have a variety, from the Brooks Juno to some Target models and some from Title Nine. I will be ordering more!

Impressed by the support and style

Like many of the reviewers, I've been searching for a sports bra to replace the Juno model from Brooks Running / Moving Comfort. I was a bit intimidated by the description of the Sisters Bra - but I am sold on it after my 10 mile run. I'm 5'11, 152 lbs and have the 36C. It was easy to get on and felt snug - but not tight - and comfortable. I didn't experience any chafing or rubbing and didn't feel like I was bouncing. I will report back if the bra disappoints after a few more uses but so far I am impressed!

Favorite running / high impact bra

I'm a generous 36C and like almost no movement when I do high impact sports. I just bought my fourth sisters bra, so I figured it was time to let Oiselle know why I like it!
Pros: higher neck, modesty pads that don't fly out in the wash, low / no movement during running or tennis. I also like how the bra looks and how I look in it. It's also constructed in such a way that my girls are high, front and center, if that makes any sense. Straps don't dig. It's a well engineered bra.
Cons: not easy to get on. Shoulder flexibility is an issue for me at the moment, so I just close the hooks and struggle into the thing. However, once it's on, I am ready to go!