Take care of your brain, because concussions are lame and math is hard. This 187 Killer Pads skateboard helmet is a popular choice on the streets or at the park. The 187 Killer Pads Pro Skate Helmet will help protect your melon from the hall of meat. Better safe than sorry! Features: * 187 Killer Pads Certified Helmet Advanced Helmet Technology * Low Profile and Lightweight * Rugged ABS shell * EPS Liner * No-Sweat Air Vents * Washable Heat Sealed Comfort Foam * Multi-Point Strap Adjustment * No-Pinch Buckle * Stainless Rivets * Dial Adjuster * 2 Sets of premium comfort foam to help you customize the fit of the helmet to your head 187 Killer Pads CERTIFIED HELMET Meets or exceeds the following Helmet Safety Standards U.S. CPSC 1203 Bike / ASTM F-1492 Skate / EN CE 1078:2012 Complies with U.S. CPSC safety standard for bicucle helmets for persons 5 yrs and older. Sizes: * Youth – 18.8-21.25 inches * Small / Medium – 21.5-22.75 inches * Large / X-Large – 23.25-24 inches WARNING: SKATING IS AN INHERENTLY DANGEROUS ACTIVITY. INJURY OR DEATH MAY OCCUR. This helmet is not designed, nor is it possible, to prevent all potential brain and head injuries which may result from skateboarding or roller derby. For maximum protection, this helmet must fit properly. In event of a severe impact, this product should be replaced. USER SHOULD REVIEW ALL WARNINGS AND INSTRUCTIONS, AS SET FORTH IN THE OWNER’S INSTRUCTIONS, PRIOR TO USING THIS PRODUCT.