The Patagonia Fly Fishing Vest Front Sling takes the best of a fishing vest and blends it with prime features of sling packs so you don't have to choose between a vest or sling. A row of vertical pockets gives you the best of the vest, while a large storage pocket sings the praises of the sling. Light and breathable, the body of this sling vest is made from 210D polyester 3 D spacer mesh. The shoulder harness and back panel are crafted from pure polyester. Small pockets hold small gear. The back zipper closer guards the entrance to the large pocket, where you can stash lunch, a fly box, and a compressible, ultralight raincoat. An internal security pouch offers waterproof storage for your car keys and cash, while other internal organizers keep tippet spools safe. A bottom water bottle holder prevents you from going dry in the middle of a body of water. With a simple swing, you can change what faces forward, be it the vest side or the sling side. Either way, the Vest Front Sling provides great gear storage on your body for a full day of fly fishing fun.