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New and improved, the Brooks Equilibrium Racerback II maintains its flattering, body-hugging fit, but this silky soft top now features an anti-microbial shield to keep you fresh, UPF 40+ protection, larger underarm and back mesh panels for optimal breathability, and a modified v-neck for a feminine touch. Equilibrium fabric technologies draw the moisture from your skin, while reflective details increase visibility.


  • Eggplant (457)
  • Neptune (531)


Important Shipping Note: U.S. sales only.


  • Equilibrium fabric pulls moisture away from your skin, keeping you dry and comfortable
  • Soft, lightweight stretch fabric
  • Flat-locked seams reduce chafing
  • Under arm and back mesh panels for increased breathability in key sweat zones 
  • Reflective logo on chest and upper back
  • UPF 40+
  • Main Body: Equilibrium Silc Lite (90% Soft Moisture-Transfer Polyester/10% Spandex Jersey), a synthetic fabric with a wicking finish
  • Mesh: Splice (80% Polyester/20% Spandex Moisture-Transfer Stretch Mesh), a breathable synthetic fabric to keep you cool and dry

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