Our Active models give a slightly lesser degree of support than the cushion and support versions of the Advanced insoles, and make a perfect foil to place in your everyday footwear; thus ensuring both 24/7 protection whatever you wear on your feet, and also a slight improvement in gait to help prevent repetitive strain injuries. Has full 3mm Foam Damping which absorbs up to 95% of high frequency shock waves. F3D Foam F3D Foam 3mm damper is an advanced dampening foam insert which dissipates up to 95% of the high frequency shockwave in each foot strike, reducing the impact to your feet, knees and hips. PU foam core The PU foam core provides comfort and support to the whole foot. TPU brace TPU brace provides support in a controlled, comfortable manner to aid gait and reduce injuries. Full-length insole Shock absorption in the key impact points of the heel and forefoot, mirroring where the body has naturally absorbent fatty pads and aiding natural gait.