GOMATIC HAS OUTSMARTED SCIENCE and developed a carry-on that offers up to 20% more space than other carry-ons with the same exterior dimensions. This means you can take up to 2 extra days' worth of clothing. Equipped with best-in-class materials, YKK zippers, 360-degree Silent Glide wheels, micro-welded technology, integrated TSA locks, and expansion options when you need them. The Gomatic METHOD CARRY-ON navy has been tested in over 30 simulations under real-world conditions and has proven to meet the demands of travel. Full expansion from 22.9 cm to 27 cm (from 39 to 47 liters), four 360-degree Silent Glide wheels, durable Makrolon shell, easy-to-clean interior, micro-welded construction and ribbed design for strength, internal corner protectors, compression plate, 3-stage aluminum trolley handle, internal organization pockets, hidden GPS tracker pocket, customizable TSA locks, meets all TSA carry-on standards.