More warmth, less bulk, traction and flexibility for those who work in cold conditions. Waterproof full-grain leather with waterproof membrane, featuring SympaTex Reflexion membrane to reflect radiant heat back to the toes. Efficient 3M Thinsulate Zone insulation for warmth without bulk. Anti-microbial Cambrelle lining, Goodyear welt construction and steel shank. Contoured OrthoLite footbed with Outlast Adaptive Comfort cover. Under-foot aluminized reflectant and insulated steel safety toe. Timberland PRO rubber Ice Trax cold formula outsole remains flexible longer in cold temperatures, slip-resistant, oil-resistant, abrasion-resistant and features Ladder Lock outsole radius.