100% Polycarbonate. Micro diamond texture is extremely scratch resistant, keeping cases Samsonite Fiero beautiful trip after trip. Re-engineered lighter weight wheels for effortless suitcase mobility. Case expands 2" for added packing capacity. Full-zip interior luggage divider and cross straps for increased packing organization. Side mounted TSA approved lock ensures security while traveling. Carry-On size and weight allowances vary by airlines. Go to shop.samsonite.com/airline-carry-on-guide for more details. If the bag is overstuffed, it may not be accepted by the airlines. Weight: 7.5 lbs. Body Dimensions: 19.5" x 14.5" x 9.0" Overall Dimensions: 21.5" x 14.5" x 9.0"