Tactical Grips are the thinnest, strongest, grippiest grips in the game. The outside is made out of durable rubber polymer that provides maximum grip (even on powder-coated bars). You will spend less time chalking and more time pumping out reps. The inside is made of woven kevlar. This durable material features abrasion resistance, moisture absorption, protection from high temperatures. The Tactical Collection also features a thumb guard for comfort and protection from pressure and friction at the underside of the thumb area at the wrist.