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To ensure that your racing outfit meets the demands of all your competition environments - hot and cold - bring along the Mizuno Aero Breath Thermo® Wind Top. Incredibly light, yet also reliably warm, this half-zip high-tech piece is a must-have for cold weather race days. Breath Thermo® fibers, strategically placed, change body moisture to heat so that you can have lasting dryness and warmth on frigid days. A back zipper pocket for storage, thumb holes for additional warmth, and reflective details for increased visibility.


  • Black/Lichen (904W)


  • Front zipper with reflective piping and zipper garage
  • 2" mock neck
  • Double layer chest and shoulders: Windproof shell and strategic Breath Thermo® fabric converts moisture to heat for all-over warmth
  • Extended sleeves, tapered cuffs, and thumholes to keep hands warm
  • Back zipper pouch with reflective piping to stow essentials
  • Ergonomic seamlines for optimal range of motion
  • Front and back reflectivity for increased visibility in low-light settings 


  • IMPERMALITE™: Shell Exterior (100% Polyester), a windproof, lightweight fabric shell
  • Breath Thermo®: Inserts (87% Polyester/13% Polyacrylate), a unique fiber woven fabric that generates heat in reaction to body moisture
  • Inserts (86% Polyester/14% Spandex), a moisture-wicking fabric with stretch


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