8-Pack Signature Water Helmets

8-Pack of BirdBrain Helmet's signature and one of a kind helmet, purpose built for water sports. We specially designed these helmets to protect riders from person to person and water impact. Protective foam padding designed to absorb high impacts and prevent injury by covering the rider's front, back, sides and top of the head. Helmet uses a velcro strap to insure a secure fit to any rider. Parents and riders alike can have peace of mind and enjoy their time out on the water! About this item Made of 7/8" dipped foam Ventilated for riders comfort  Fastens with elastic strap under chin with velcro  Uniquely designed to absorb impact Bright colors for visibility in water Sizing Chart (Head Circumference) Small: 18-20 Inches (Best fit for young children) Medium: 20-22 Inches (Best fit for older children and adults)  Large: 22-24 Inches (Best fit for that one guy in the family with the big head)