I guess it would depend on if he packed himself or if Mom packed for him. Colorado in the fall is an odd place. One day can literally be in the Seventies and hot, the next we can have a blizzard and have a high in the low teens. You must bring clothes for any weather. We learn to dress in layers, so we can peel them off accordingly... I know when my boys pack for even a weekend, they bring a good sized tote each. That is with them packing and they forget things let me tell ya. You have your dress clothes and your ghetto clothes for relaxing and your sleep clothing...etc. I am not trying to be snarky, just a week at Dads would be more than a backpack full especially with electronics mixed in. IMHO