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Cocona's ultrafast wicking power and ventilation panels make our Techwick Endurance Crew a great choice for high-intensity enthusiasts who push their limits.. . . . Endurance body fabric: Supersoft polyester, minerale polyester, and polypropylene. Side ventilation panels: Small-hole polyester mesh and spandex for cooling air flow. Ultrafast wicking: Cocona active particles work with your body to stay dry from the inside by removing moisture, accelerating evaporation, and drying faster. Cocona also attracts odor molecules and provides UV protection. Mechanical stretch provides freedom of movement. Flatlock seams to prevent irritation and chafing-no side seams. Self-fabric binding at back of neck for smooth comfort and durable wear. Reflective Techwick and EMS logos. Front length from high-point shoulder: 25 in.. Drop-tail hem for greater coverage at the back (1.25 in. longer than front). Machine wash cold, gentle cycle; tumble dry low; do not use fabric softeners. Made in Vietnam.