SSM stands for Sophisticated Sport Mobility. This Teambag is made from a water resistant softshell material. Bonded, water resistant zippers as well as an innovative Fidlock® securing system provide additional water resistancy. The bag's material is extremely soft to fit into lockers. With its special zip shoe compartment, the Teambag is the perfect companion for the Gym or for shortterm travels (fits 15 inch PC / tablet PC).