Carry-On: 21.5' H x 14.5' W x 8.25' D Medium Check-In Luggage: 25.5' H x 18.25' W x 10.25' +2' exp D Large Check-In Luggage: 29.5' H x 20' W x 11.5' +2' exp D Lightweight and resistant ABS Double 360-degree spinner wheels (8 wheels) Telescopic trolley handle The carry-on has an integrated USB port The medium and large models have an extra handle on the side and rigid feet to protect shell from shock Zipper-release expansion system (20% more packing space) on medium and large models Dividing panel, practical mesh pockets and tightening straps