Fox Racing Proframe Matte MTB Helmet Designed for the rigours of enduro racing, the Fox Racing Proframe Matte MTB Helmet delivers full-face protection without the associated weight penalty. The design is exceptionally lightweight, tipping the scales at only 750 grams whilst still receiving a DH-rated ASTM 1952-15 certification. 24 Big Bore vents channel cool air into the helmet to reduce the risk of overheating, making this an excellent choice for even hot, summer days. A MIPS liner reduces rotational forces in the event of a crash, helping to decrease the risk of a concussion by limiting the amount of energy transferred to the brain. A dual-density Varizorb EPS inner further enhances protection, while an antimicrobial liner prevents the buildup of odour. Comfortable and stylish, this ultralight full-face is sure to be your go-to choice on the trail.