The Skyline Summit GTX boot is engineered for performance and all-day comfort. In other words, it's up for any outdoor challenge. ATS Pro technology for advanced stability and comfort. Premium GORE-TEX waterproof, breathable membrane construction. Full-grain leather combined with rugged nylon panels. Mesh lining. Extra wear protection around toe and heel. Shock-absorbing EVA midsole. Dual-density Duratread outsole with multi-directional traction design.