Enjoy more thrills and don’t sweat the spills with the Pro-Tec Ace Water Helmet! This professional quality helmet for action sports on water offers a high-impact ABS shell and a waterproof dual-density EVA liner that protect against hard, fast falls. The removable cupping ear guards with water channels and padding help prevent ear drum damage when hitting the water at high speed. A full surround ‘head lock’ interior fit system supports the back of the head for maximum comfort and safety while 15 vents improve air ventilation and water drainage to keep the wearer comfortable. This helmet is Certified, meaning it meets and passes independent safety standards for water helmets. Small size helmet fits head circumference of 21.3-22.0 inches (54-56cm) and includes an adjustable chin strap for optimal fit. Helmet comes with 1 year warranty.