adidas Terrex Speed Flow Primegreen Trail Running Shoes unisexUp, down and across. Go light and go fast in the adidas Terrex Speed Primegreen Trail Running Shoes. A breathable mesh upper makes for cool feet. Strategic overlays add durability for rough terrain. Continental? Rubber grips slick roots and loose rock, wet or dry.Open mesh upper with abrasion-resistant weldings. Breathable and comfortable.Textile lining.