The salming race r9 mid 30 mens court shoes offer excellent shock absorption up to 70 more efficient thanks to cushioning foam in the heel this makes for smoother motion which is more natural and stable too thanks to the outsoles torsion guide system 6275 and lms and lms the 311g 11oz court trainers have a non marking outsole that gives 25 more grip and the speedlite midsole delivers lightweight performance with its eva compound and longer lasting cushioning the ergoheelcup encoura