FLY Racing’s HDM (High Density Memory) protectors are made of a special blend viscoelastic foam with memory function allowing for repeat impacts that passes CE EN1621-1 rating to level 1 Hidden stitching prevents fraying and adds to durability The protective pads feature an array of breathe holes to increase airflow Extended upper cuffs and internal silicon gripper bands help with slipping The pads are both soft, lightweight and low profile 4 way stretch mesh panels at the rear help in giving a great fit and allowing air to escape CE tested and certified as impact protection: EN1621-1 Level 1 28-3150 28-3151 28-3152 28-3153