Timberland PRO Men's Ascender 6" Alloy Safety Toe Waterproof Industrial and Construction Shoe 100% Leather and Textile Imported Synthetic sole Shaft measures approximately 6.5" from arch Boot opening measures approximately 12.5" around Premium full-grain leather for comfort and durability Alloy safety toe shaped on titan last for protection and a superior fit Goodyear welt construction for durable mechanical bond Mesh lining with antimicrobial treatment for odor control and comfortable feet Contoured single-density dynamic anti-fatigue technology absorbs shock and returns energy at key zones of the foot while providing enhanced moisture management for all-day comfort