Sportsman's Warehouse Lycra EVA Fly Box - Lightweight floating fly boxes made form EVA foam and covered with Trout pattern printed lycra. Features magnetic closure and slit foam. Floating EVA foam Trout pattern Magnetic closure Slit foam Standard 5 x 3 1/4 x 1 1/4in Large 6 1/4 x 3 3/4 x 1 1/4in Slim 6 1/4 x 3 3/4 x 3/4in