Mid-sized Three Day Pass in Foliage Green pack will keep your gear where you can find it. Easy access to books, clothing and accessories in the generous main compartment. Organize pens, pencils, business cards, etc. in the Organizer Panel. Compact enough to use virtually anywhere, but with the capacity for a few days of clothing or supplies. Ideal size for airport carry-on use or add a hydration reservoir for a casual hike. This pack measures 20"x14.5"x8.5".