Ace SXP The Ace helmets have quickly become the most recognizable helmets in the park. Increased venting, aero styled shell, and SXP multi impact technology are the key features protecting the skulls of a few of our top skaters like Bob Burnquist and Steve Caballero. SIZES: JR | S | M | L | XL Certified to: CPSC 1203 / ASTM 1447 / CE 1078 Ace 2-STAGE The Ace Skate Signature series is also available in Lo-Pro 2-stage liners, for those seeking that time honored Pro-tec fit and feel. SIGNATURE HELMETS ARE Complete with your favorite skater’s sponsor sticker sheet. This helmet delivers nothing but quality. SIZES: S | M | L | XL Not Certified: (These helmets use 2-stage foam that does not meet certification standards and should only be used for skating)