Built for the rugged outdoors, the Boreal provides a protective upper with TRAXION(tm) grip fort he worst of conditions. Woven mesh upper with synthetic trims for durability off-road. Textile lining. EVA insole for comfort. adiPRENE(R) insert in heel for comfort and shock absorption. Injected EVA midsole for long-term lightweight cushioning. adiWEAR(R) outsole for best durability in high-wear areas.