Maintain a comfortable temperature throughout your training session in this lightweight training layer, which features FlashDry® technology to wick away moisture as you start to perspire. Breathable knit panels provide ventilation where you need it most, while a secure-zip pocket gives you somewhere to stow your keys and loose change. MP3 compatibility makes it easy to take your tunes on the move. FEATURES Reflective logo Body-mapped ventilation Secure-zip chest pocket MP3 compatible FABRIC - SOLID BODY:  160 g/m² 65% polyester, 35% recycled polyester double knit with FlashDry® APPROXIMATE WEIGHT: 421 g