COMPRESSION ColdGear Fabric Tech: 6.6 oz. 66 % Nylour / 19 % PolyArmour / 15 % Elastane The only layer you need when the temperature drops and your intensity heats up. This top will keep you warm when you stop for a breath and move the perspiration off your body when you start back up. Aggressively colorblocked in team colors, this is the perfect layering piece when the cold weather approaches.