certified spine protector for all freeride backpacks. the clasp spine back protector is a separate spine protector made especially for the freeride series backpacks. the supple protector made of multi-impact sas-tec foam, which is certified according to motorbike standards, can be inserted into a separate slot on the inside of the backpacks as needed.without noticeable additional weight or restriction of mobility, it provides maximum protection for the spine. when force is applied slowly, the foam cushions by gentle compression. in the case of falls with high force and high speed, the microstructure of the foam hardly gives way, suddenly becomes firm, and provides reliable protection. the clasp spine back protectoris the optimal extension for best back protection when freeriding.