Waterproof full-grain leather, 10" shaft height, Round composite safety toe, Removeable comfort insole, Goodyear welt construction, ASTM F2892 electrical hazard standard, TPU and EVA non-marking outsole, Oil- and slip-resisting rubber outsole, ASE7 adapts as you stretch, move and flex to reduce shaft tension, reduces ankle pressure for all day wearing, works well under pressure when kneeling, squatting, or crouching, Shaft flexes and expands for maximum comfort and ease as you put them on and ASE7 moves with you during entry,