The MonTrailer meets the demands of a comfortable helmet for all those who do not want to compromise on safety. As demands on the trail become ever greater, demands on equipment and associated protection requirements also increase. The MonTrailer offers this increased need for protection and a multitude of well-thought-out features for off-road use. This mountain bike helmet is light, extremely well ventilated, incredibly comfortable, and is perfect for racing or everyday trail tours. The robust MonTrailer has extra stability through the ActiCage construction, in which a structural reinforcement integrated into the EPS is applied.