Ventilated, ultra-lightweight 1.5 oz. design weighs less than a baseball cap. * Doesn?t alter the way it feels to head the ball. * DuroStrength fastener, with overlapping side ribs comfortably conform to different cranial shapes. * Outer 4-way stretch material simulates forehead texture and action, with uniform fit, and flexibility. * Inner Tru-Play SoftWeave whisks away sweat and maximizes comfort.