Pod - It fells invisible | You feel invincible. Compression sleeves enhance comfort and support while reducing possible abrasion. Flat-lock stitching for extra comfort. Anti-slip silicone grippers under the top and bottom band aid in gripping the frame of the brace and keeping the sleeve in place. Moisture wicking fabric. Extra-long sleeves that fold over the brace to prevent slipping and cover top and bottom Velcro® brand hook-and-loop straps to avoid catching on pant liners.