ToughBuilt GelFit knee pads are suitable for smooth, clean surfaces both indoors and outdoors. They are ergonomically shaped to wrap around the knee and upper shin, providing maximum pressure distribution for all-day comfort. The high sidewall significantly reduces twisting of the knee. Elastic EVA straps stay comfortably in place without restricting circulation or cutting behind the knee. ToughBuilt snap shells easily release and replace. These knee pads are made from robust materials and construction, featuring abrasion-resistant 1680D material.