adidas Performance Men's Terrex Ultimate Boost Boot other UPPER: climaheat combining Primaloft 200g insulation together with an innovative collar execution keeping snow and cold out. UPPER: Primaloft 200g insulation material for more warmth, even in wet conditions. UPPER: Climaproof membrane for waterproof protection in wet conditions. MIDSOLE: Boost offers endless energy in the mountains and high adaptability on rocky surfaces. OUTSOLE: Continental Rubber for extraordinary grip.