Caiman Black Deer Grain, Reflective Insulation, Welding-Revolution X-Large Extra-large size Genuine American Deer grain leather palms with double stitched padding and wear-patch Large pulse protector Insulated with HeatFlect aluminized film with full sock-insulation with flame resistant foam/fleece Exclusive 3-dimensional pre-curved fingers and a form-fitting design for ultimate fit, comfort and dexterity