Renowned for its ventilation and comfort, this all-purpose MTB helmet from Leatt is fitted with 360 Turbine technology, offering great protection at a fair price.This fully ASTM DH certified helmet is the go-to choice for enduro and bikepark riders. Whether you're tackling uphill, downhill, or going upside down, on an E-bike or a trail, the DBX 4.0 has got you covered. The full-face design with removable mouth piece ensures outstanding ventilation. Plus, the convenient Fidlock® buckle makes it easy to secure and release.We all know that crashes happen. Sometimes they're hard, and sometimes they're even harder! But there's a solution to minimize the risk of head and brain injuries. It's simple - get the best helmet you can find that reduces both rotation and impact energy to your head and brain.Our helmets feature 360 ÌŠ Turbine Technology. The helmet is lined with turbines - 360 ÌŠ moving discs made from an energy-absorbing shape and material. This innovative technology offers two exclusive advantages. Firstly, it reduces rotational acceleration to the head and brain. And secondly, it absorbs energy upon impact at concussion level.So, the next time you crash, make sure you're protected by the best!DH certified Lightweight Polymer Compound shell in two sizes Brain injury reduction technology Reduces forces associated with concussion Maximized ventilation with 22 vents Removable mouth piece ventilation cover | Fidlock magnetic closure system Dri-Lex® moisture wicking, breathable, antiodor and washable inner liner Optimal neck brace compatibility Visor with breakaway function for rotational reduction in a crash In-molded EPS + EPO impact foam for superior energy absorption 360 Turbine Technology Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion Reduces peak brain rotational acceleration by up to 40% Weight: From 850g (1.87 lbs) Certified and tested: AS/NZS 2063:2008, ASTM F1952–10, EN1078, CPSC 1203 Sizing #S (55-56cm – 21 5⁄8 - 22”), #M (57-58cm – 22 ½ - 22 ¾”), #L (59-60cm – 23 ¼ - 23 5⁄8”), #XL (61-62cm – 24 – 24 ½”)