Cozy Thinsulate Muff with Inner Warmer Pocket (Mossy Oak Breakup Camo): Free Grabber Mega Warmer. Grabber Cozy Muff is the cold hand solution when gloves just won't do. Great for football games, camping, hunting, or photography - anytime you need to keep your hands free while working or playing in the cold. Place a Grabber Mega Warmer inside insulated muff to create a warming-oven for your hands. Solid-color muffs are constructed with a durable waterproof nylon shell, while camouflage muffs feature a soft and silent cotton blend. Each muff comes with a FREE Grabber Mega Warmer.