Helmet Bern Baker matte black 2020/21 Traditional Bern profile with visor The Original Visor Brim Low Profile Sink Fit Updated Liner 1 Shell Size Thinshell Construction (EPS) - hardened polystyrene, a material with high shock absorption, the most common cushioning layer used in the manufacture of helmets. However, it is designed for individual impacts. When energy is absorbed by EPS, it causes breakage. If you have a large fall, you may need to replace the helmet, as its shell may