LaCrosse Men's Spog 12-Inch NMT Work Boot 100% Rubber Imported Rubber sole Shaft measures approximately 11" from arch Boot opening measures approximately 14.5" around Breathable air mesh lining Chemical resistant dipped latex neoprene Fiberglass shank for arch support Adjustable back gusset Lightweight alloy toe Tested against 28 industry chemicals, this work boot brings safety and protection to worksite clean-up.