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. SporTube Overheader Padded Gear and Boot Backpack | Multi Green | Christy Sports