The Black Flat Cap Gel Knee Pads have a heavy duty over sized abrasion resistant hard plastic cap. Flat kneeling surface for greater kneeling stability. Real Gel insert, does not compress over time plus 1/2 inch foam padding, to absorb impact and assure comfort. Hook and loop neoprene split strap to avoid bunching. Unique sizing pad assures individual sizing comfort. Fully stitched polyester thread sewn on cap keeps debris out from under cap.