Timberland PRO Men's Gridworks 8" Alloy Safety-Toe Waterproof Industrial and Construction Shoe 100% Leather Imported Rubber sole Shaft measures approximately 8" from arch Mid-high work boot featuring waterproof membrane and alloy safety toe Fiberglass shank for structural support Mesh lining with antimicrobial treatment for odor control Dual-density dynamic anti-fatigue technology All-weather TPU (thermos-plastic urethane) outsoles have a flat wedge shape, low temperature formation to maximize traction on cold surfaces, and are oil-, slip- and abrasion-resistant