ASICS Men's GEL-Equation 5 Running Shoe 100% Mesh Rubber sole Men's Asics, Gel Equation 5 ideal for under pronators and runners with a neutral foot plant. Trusstic System links the rearfoot and forefoot and supports the midfoot. AHAR Heel Plug helps enhance durability at initial impact. SpEVA Midsole provides midsole durability and shock attenuation.