Ready at a moment’s notice, this side zip work boot offers our KEEN. POLAR TRACTION outsole technology which penetrates icy surfaces with a “micro-cleat” effect, KEEN. DRY waterproof, breathable membrane, and is 100% non-metallic with durable nylon eyelets and a flexible, woven puncture resistant plate. | Keen Men's Waterproof Detroit Plus 8" Zip Boots Soft Toe Size 11.5 D In Black | Durable Work Bootss.