The BLACKHAWK! Advanced Tactical Knee Pads V.2 are lightweight, comfortable and offer excellent shock resistance. The closed-cell foam padding provides little to no moisture retention, and the 600 denier nylon shell is tough and durable. The non-slip, flexible, molded polyurethane cap provides excellent protection, and the contoured interior ledge prevents pad slippage. The hook & loop elastic straps keep the pads in place, even during strenuous activity.