Carry-on Luggage

“I need to know the largest size knapsack airlines will permit to be carried onto a domestic flight. My son is off to Fla and needs to fit his stuff into one carry-on bag. He'll be using it for this trip, hiking and as a school back pack (in the new year.) Weight is not a concern, but size and durability is. He is brutal on his equipment.
Any suggestions would be appreciated (well, most suggestions, that is!)”

“LL Bean will replace packs for free if they get destroyed from over use.”

“The standard for carry on luggage is 9" X 14" X 22" and 50lbs max. Although I swear that some of the carry on bags are way bigger than this. Try calling the airline to see what they say.”

“I don't think that an airline would stop anyone from bring on a normal sized book bag, or even a not-too-huge day pack.”

“Things are always changing at the airport, so it's good to give your airline a call. They have gotten more strict in the last year about carry on pieces. A soft piece of luggage works very well for take on.”