Mountainsmith Messenger Bag Small The Mountainsmith Messenger Bag Small is made from 100% recycled PET; this bag utilizes eight recycled 16-ounce plastic bottles. Adjustable and removable shoulder strap with sliding pad ensures the pack sits comfortably on any shoulder. A tablet device easily slides in the back inner sleeve; you'll be able to fit all four of your travel/hiking/bird guides inside, along with all the other bits one carries in a purse. The back panel boarding pass pocket keeps travel documents on hand and safe. The side mesh pockets are perfect for keeping your water bottles or snacks accessible. The Mountainsmith Messenger Bag Small also features a key clip, fleece-lined eyewear pocket, flap closure, interior organization pocket, compression strap and a carry handle that allows you to carry the bag as a briefcase, if you want your shoulder to rest a little.