Kentucky Horsewear Turnout Boots 3D SpacerThese Turnout Boots 3D Spacer use our finest technology. The 3D Spacer consists out of 3 layers and is laminated with a breathable, shock absorbing EVA foam along with a nylon Quick Dry lining which is extremely comfortable against the skin. The 3D Spacer is extremely breathable, lightweight, easy to maintain, it divides the pressure and is very shock absorbing. Therefore, these boots, anatomically designed with two generous and secure Velcro straps,