With its timeless design, killer color range and our unique rubber finish, the Triple Eight helmet with sweat saver liner is a staple of our helmet collection. And with our stink-free, moisture-wicking sweat saver liner inside, it’s a helmet you’ll use for years to come. Sweat saver replacement liners are also sold separately in various colors to customize your helmet. To ensure a perfect fit, measure the circumference of your head starting in the middle of your forehead and match it with the sizes below: XS 20.10 – 20.50 in (51 – 52 cm) s 20.60 – 21.30 in (52 – 54 cm) m 21.40 – 22.00 in (54 – 56 cm) L 22.10 in – 22.90 in (56-58cm) XL 23.00 – 24.00 in (58 – 61 cm) xxl 24.00 – 25.00 in (60 – 62 cm).