Engineered from an ultra lightweight moisture-wicking fabric, the Light Speed Tech Tee has zones of ventilation placed exactly where you need them, keeping you cool with every step. Fabric: Quick Drying Climate: Keeps you cool Feature: Reflective Highlight Activity: Running Product details: Singlet 129gsm engineered fabric Ventilation zones engineered into upper chest and back Ultra fine yarn provides rapid moisture dispersal Smooth bonded finish in key areas of movement Reflective logos and trims This garment contains recycled yarns STAY COOL Engineered zones across upper chest and back keep you cool where you need it the most. SMOOTH BONDED FINISHES Clean cut bonding in key areas for a smooth finish to eliminate chafe and help reduce aerodynamic drag. QUICK-DRYING Ultra fine polyester yarn provides rapid moisture dispersal to keep you cool and dry. REFLECTIVE TRIMS Reflective logos and trims on shoulder, upper back and hem. FABRIC COMPOSITION: 100% RECYCLED POLYESTER SKU: MR7151a-VOL/BRF