Advanced protection for your hips, the City Crash shorts include two moulded high density dual layer EVA protection combined with PORON® XRDTM on the sides and a removable EVA insert for the back. PORON® XRDTM technology offers the best repeated shock absorption of any high performance protection foam for extreme applications. In a nutshell, impact force dissipates and is distributed over a larger area, resulting in lower stress to the wearer. Upon high speed contact, PORON® XRDTM material instantaneously firms creating a protective shield that absorbs the strike, while remaining comfortable and non-confining as it returns to its "resting" state. Because XRDTM foam will not break down on impact you get maximum protection every hit. The ENNUITM City crash pads passed all the tests and are CE certificated for skating, cycling and motorcycling, including the test under -20ºC for snow sports. They will protect you even in the most demanding and extreme situations. Recommended