Nike Mens Tech Wilder Running Tights Blue Camo 85% Polyester/15% Spandex Dri-FIT fabric helps keep you dry and comfortable / Mesh panels at back knee for zoned ventilation Stretch waist with interior drawcord and mesh backing for a snug, ventilated fit Ergonomic, flat seams for enhanced range of motion and a comfortable feel Reflective elements for enhanced visibility in low light Elastic cuffs with grip tape and zip hems for a secure fit and custom ventilation