Grimnir is Terje Haakonsen ''pro model'' and the most advanced freeride helmet on the market, also tested and certified for use of GoPro® and Contour® POV cameras. Only the best materials and production technologies are used. The shell is made of Carbon Fiber Reinforced Polymer (CRP), which provides incredible strength. In addition the absorbtion is done by Sweet Protections unique ''Impact Shields'' technology; advanced EPS padding constructed with ''shields'' in various densities to distribute the pressure and most efficiently absorb the energy. The helmet also has the unique Multi-directional Impact Protection System (MIPS) technology that reduces rotational energy by up to 50%. Hidden in the carbon shell is also threaded fasteners for assembly of POV cameras - 2pcs different mounting brackets are included with the helmet. Grimnir is well ventilated with a total of 26 ventilation holes, has a removable and washable Coolmax ® liner and ''OcciGrip'' system easily lets you customize the fit of the helmet. Grimnir also has removable ear pads.