The Shadowmatt is made of polycarbonate covered with an anti-scratch mat painting. The inner shell is made of polystyrene with variable density providing a better dissipation of the energy produced upon impact. Each shell can accommodate 4-5 inner foams of different sizes in order to obtain a perfect adjustment to the rider's head. This system allows to follow the growth of a young rider. CAUTION: Safety equipment must fit properly and be appropriately secured with manufacture approved parts only. Altering or adding to safety equipment voids warranty and can result in injury. As a safety precaution, inspect all products prior to each use. Polycarbonate outer shell and variable density polystyrene inner shell providing a better dissipation of the energy produced upon impact Internal comfort ‘’memory’’ foam and semi-rigid chin strap: no risk of tipping the helmet in case of a violent movement Exceptional ventilation through the front air inlet and the back extractors : the fresh air expels the hot air to the back extractors around comfort foam 3 shell sizes available which can accommodate 4 to 5 inner foams of different sizes: perfect adjustment to the rider’s head Removable and washable internal comfort foam British PAS 015 2011, European certification CE / EN1384-2017, ASTM/SEI F1163-15