Knees can be finicky, especially over time, and keeping them warm can help keep them healthy and pain free. The Wind Pro 2 Knee Warmers are made with Light Wind Pro windbreaking fabric, treated with DWR. The extra-wide gripper at the thighs offer a solid grasp to prevent slippage, without digging in. These knee warmers are cut with an ergonomic fit for comfort and performance. Reflective elements have been incorporated to help keep you visible especially in lower-light conditions.