Ultra-lightweight fabric is smooth against the skin, delivering a chafe-free run. Superior Moisture Transport System wicks sweat away from the body, so you stay dry and comfortable. 360 degree reflectivity provides safer low-light training. Raglan sleeve construction allows complete arm mobility without abrasion. Deep zip construction gives you on-demand ventilation options as your run heats up. Back neck tape adds durability where your jacket gets the most wear. Polyester. Imported. Find the Under Armour Men's UA Run ¼ Zip Jacket at Under Armour in the Men,Apparel,Tops,Outerwear-top,Insulated section.