adidas - Rhyolite GTX Low M (Curb/Uniform Blue/Iron/Black) - Men's: Waterproof split-suede leather upper. Waterproof laces, threads and PE foam. GORE-TEX(R)(tm) upper for complete waterproof and breathable protection. Waterproof gasket construction with seam sealing. EVA insole for comfort. Injected EVA midsole for long-term lightweight cushioning. High-traction rubber outsole, the ultimate in grip. Mountain grip outsole provides the perfect combination of stability and grip.