Using levels of mesh mapped to your body, the Under Armour Seamless Stride Short Sleeve gives you ventilation where you need it. Fewer seams give you distraction-free comfort during your activities. New, softer knit fabric with engineered mesh ventilation, mapped to the places you need it most Nearly sew-free construction to eliminate chafing Material wicks sweat & dries quickly Anti-odor technology prevents the growth of odor-causing microbes Reflective details for greater visibility on low-light runs