Mystery Ranch Bop Sling BagMystery Ranch Bop Sling Bag Originally designed to be worn solely as a shoulder bag, the Bop now expands its options. Shoulder strap, MOLLE attachment to the main pack, or "'biner" it to an attachment point of your choice. The interior shines with simplicity, showcasing a single pocket under the protective flap. A one handed One Drop quick adjust shoulder strap lets you dial the pack in, one handed, and on the fly. Material: 330 Robic fabric Zip: YKK