Amazon.com | Poeyleja Canvas Sling Bag Convertible Crossbody 。Canvas Nylon lining Zipper closure Hand Wash Only With the zippered and adjustable straps, this sling bag can be used as a small backpack, you can also wear it as a chest bag, a crossbody bag, etc. very charming and unique which makes you the most attractive person when you wear it to bike, walk, hike, date or other outdoor activity. This shoulder casual daypack has one large easy-reach hidden anti-theft pocket, which for your phone and other frequently used small but important things, the external water bottle holder makes this chest bag thoughtful.