US Military Elbow Pads have flexibility on both the top and bottom sections. The pads are contoured for wrap-around protection that fits perfectly to the elbows. Most elbow pads are "one size fits all" Which does not offer a quality fit for all sizes. The caps are made of high density polyethylene that gives needed impact resistance protection. The fabric is a 1000 Denier Nylon that is coated with 1 oz polyethylene to give the necessary water resistance & durability. Order your military knee and military elbow pads from army surplus world today. The 2lbs foam inside the Military knee and elbow savers gives comfort and protection for impact resistance and is contoured to the shape of the elbows. These flaps are laminated on both sides for more ease and adjustability.