Knee protector made of 4 mm perforated neoprene, Drytex material, Memory foam Foam and Armotec. Shock-absorbing Memory Foam insert provides particularly good protection against impacts and falls. Thanks to the use of Drytex material, the protector "breathes" but keeps you warm. The back side is made of perforated SBR-neoprene increases elasticity and air permeability.