The Chippewa Boots Men's 11 in Thunderstruck Waterproof Pull-On Work Boots are built for heavy-duty work. The Vibram Thunderstruck TCV Plus outsoles are oil and slip resistant with a multidirectional tread pattern to help prevent accidental falls, and the Dri-Lex linings help disperse moisture to keep you comfortable. The premium, full-grain leather uppers are waterproof to keep out water, and the OrthoLite removable insoles offer cushioning.