Men's Skechers Go Walk Max Effort Trainers in Black. Lace fastening, breathable mesh upper, Gowalk Max midsole and outsole, 5GEN sole, Goga Max technology. Synthetic overlay at laces, pull tab to heel, branding to side and tongue. Textile Upper, Textile Lining, Synthetic Sole. Ref: 54601. Take performance and comfort to the next level in the Skechers GO WALK Max -B Effort shoe. This lace-up athletic walking style features a nearly seamless air-mesh upper with lightweight 5GEN cushioning midsole and outsole, plus Goga Max comfort insole.