The Convertible Algebra Bra - Final Sale

FG icon


ALL SALES FINAL. No returns or exchanges on outlet products.
This product is not eligible for discount codes or other offers.

It's two bras in one. Wear it cross back, for maximum support. Or with straight straps, for comfort. Adjustable strap lengths also make it easy to create a custom fit. Multiple knits are in play; the body is compressive, with an interior lining with cup capacity, while the chest band uses an extra soft knit to reduce chafing.


• Convertible and adjustable straps
• Oiselle logo on chest band


• Nylon / polyester

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 4 reviews
Straps slip off and bra runs large

The straps slip off for this bra and I found the bra runs large. It is too long for my petite torso (5'2") and the bra is fairly loose. I brought on final sale so I'm stuck with it. I'll use it as a lounging or leisurely walking bra - can't use it for running.

Holy Grail of Bras

Finally, I found the perfect bra. The fit is great, fabric is so comfortable, and I can get it off when I'm soaked with sweat. Thank you!

Comfy but big

Love the feel, and the idea behind the adjustable straps. I was looking forward to a sports bra where the straps didn’t cut in on my neck. Unfortunately, the size small straps when shortened as much as possible, are gaping. I’m 5’4, and would love to find an oiselle bra on which the straps are not too long.

Straps not secure

Straps popped open as I put this on. Size was correct just seems as those there are quality control issues on this strap style. Maybe I’ll have better luck with the racerback style, but boy, this felt like a waste of my time (and money since returns are not free)