The Sportube(R) Overheader(TM) padded gear and boot backpack is a perfect carry-on boot bag. At 44 liters, the Overheader(TM) meets airline carry-on requirements and is large enough to carry your boots, helmet, clothing and gear needed for a day on the mountain. Contoured shoulder straps, load straps, chest strap and backpack design give you the most comfortable fitting boot bag available. Padding surrounds your boots ensuring superior boot protection FEATURES: Holds up to boot size 28 Airline carry-on compliant Contoured backpack straps and padded back panel 44 Liters Internal dimensions: 22x14x9+ (Depends on how much you pack into the bag) Empty it is about 4 inches, fully packed can be 12 inches in depth 2.7 lbs 1 year manufacturer's warranty