Mardingtop 65+10L/65L Hiking Backpack Molle Internal Frame Backpacks with Rain Cover for Tactical Military Camping Hiking Trekking Traveling Product Parameters: 65L : 11.4"*8.3"*33.4" , 5.8 lbs 65L+10L : 11.4"*7.1"*35.4" , 5.2 lbs Numerous Molle Loops. Rain cover included. With chest straps to cope with the weight on the road. Top lid can store small items, such as maps,tools,key. Bottom Zipped Access can easily access to the main compartment. Side detachable pockets can hold 1000ml water bottles or other big tools. Side small pockets to hold snacks,charger ot water bottle. It can be used as a carry-on, but you cannot pack it like a 65 liter and expect it to shrink below that. If you pack it like a 35 liter then you should not have an issue with planes as some customer made a trip with a 35 recently and did not have any issues using as a carry on.