Made from 5mm super stretch neoprene for warmth, durability and comfort Integrated air vents allow bubbles to escape through the top of the hood, discouraging water exchange Black fabric and neutral face mask design match any casual or fashionable swimsuit, active clothing and sailing / boat outfit Breathable material makes the head hood excellent for activities such as swimming, snorkeling, swimming, surfing, etc Outfitted with comfortable silicon face padding, easily adjustable elastic nylon straps and waterproof ear plugs