SQUASEM combines an organic form and design with tile of square-shaped pattern. Made of versatile and strong PP material, it gives SQUASEM a strong and durable structure. Expander on all sizes allows flexibility during packing. OPTIMOV™ shock absorbing wheels are sure to give every traveler an excellent rolling experience, with 1) Noise-reduction, 2) Comfortable rolling, 3) Bumpy surface tested. DUOSAF™ security zipper also provides extra security for your belongings. SQUASEM offers an innovative interior design with extra pocket for better organization. Nowadays, travelers need to worry-less, which is especially true with rPET and antimicrobial treated lining powered by Microban®