New Men Nike Windrunner Jacket Hood with Bill Lightweight Large Black White Large:Black White for ages 12 16 (measure collar NFOOC782JK3 XS Wmn Blk NO for ages 12 16 (measure collar bone to waist) Dual density foam Polyethylene sternum insert embedded in foam Adjustable back harness Includes Velcro removable tail Three zones of compression strategically placed around the knee to deliver peak performance Silicone banding injected directly onto the sleeve offers bracing and support All natural carbonized bamboo is thermal regulating and anti bacterial helping eliminate odors Anti migration technology helps to keep the sleeve secure to the thigh and eliminate slip Reflectivity for enhanced visibility in low light conditions 100% Polyester Imported UA Microthread technology in the fabric dries faster won't chafe & stretches without absorbing sweat 4 way stretch construction moves better in every direction Material wicks sweat & dries really fast Anti odor technology prevents the growth of odor causing microbes