2E brand suitcases SIGMA series set consists of three sizes models: S – small (20″), M – medium (24″) and L – large (28″). Suitcases impress with a combination of functionality and modern style. The strong and lightweight body is made of 100% polypropylene, and the top and side handles have rubber inserts for extra comfort during transport. In addition, there is a TSA combination lock for security. M and L size models are expandable to increase volume.