On Performance Bra

please select a Size
Choose a shipping method
To buy, sign in as an REI Co-op Member or join now.
Members get an estimated $7.50 back on this item.
Join the co-op today to get access to a lifetime of benefits.

Members, get an estimated $7.50 back on this item as a part of your annual .

Built to minimize bounce without restricting freedom to move, the On Performance Bra offers comfort and support without clamping or wires—and it's easy to get on and off.

  • Features

    • Designed by women, tested, improved and tested again in lab-based wearer trials
    • Responsive, premium elastic moves with you with no need for adjustments—and it's stretchy enough to make getting in and out easy
    • Fabric wicks sweat and dries fast; full mesh racerback panel provides ventilation
    • Built with medium support all the way around each breast for running and high-intensity sports
    • Light padding and a higher neckline keeps you covered, comfortable and supported


    View all On Women's Sports Bras
  • Technical Specs

    Best Use




    65% recycled polyamide/35% elastane

    Bra Support

    Medium Impact

    Support Style


    Strap Type




    Number of Pockets



    Contains recycled materials

  • Size Chart

    XS S M L XL
    Chest or Bust 31.9 33.9 35.8 37.8 39.8
    Band/Cup 30 A-C 32C 36 A-C 38 A-C 40 A-C
    Band/Cup 32 A-B 34 A-C

    Sizing Notes

    Measurements are stated in inches unless otherwise indicated.

  • Reviews
    1 reviews with an average rating of 5.0 out of 5 stars

    Loading Reviews...
  • Questions & Answers

    Loading Questions...