Under Armour Armour Ua Seamless Stride Ls Running Top Womens. Mesh inserts, which are precisely tailored to your body, provide ventilation in key areas and offer you more comfort thanks to fewer irritating seams. In short: this is the most comfortable training apparel you've ever worn. New, soft knit fabric with breathable mesh inserts in key areas Nearly seamless finish prevents chafing The material wicks sweat and dries very quickly Reflective details for better visibility when running in low light conditions. Mesh inserts, which are precisely tailored to your body, provide ventilation in key areas and offer you more comfort thanks to fewer irritating seams. In short: this is the most comfortable training apparel you've ever worn. New, soft knit fabric with breathable mesh inserts in key areas Nearly seamless finish prevents chafing The material wicks sweat and dries very quickly Reflective details for better visibility when running in low light conditions