UltraFlex DS neopreneFlatlock stitchedAdjustable toggle and drawstringDouble sided neoprene offers great durability to velcro and other abrasionVisor and tuck in neck-to-chest panel Wetsuits. O'neill wetsuit hoodVisor:Blocks sun & channels water from eyesAdjustable drawstring face: For a super secure fitFirewall lining: Providing the hood with additional warmthThickness: 3mmWind resistant single layer smooth skin exterior Keeping you warm inbetween wavesLightweight fluid foam single layer neoprene: Extremely warm. lightweigh and flexable Size: one size,Small.