WET/DRY: Stash-It Fanny Pack Insert Case | Clear, Transparent, Iridescent, Theme Park, Beach, Pool, Boating, Swim, Spring Break, Festival, Protective, Resistant. Your belongings will stay dry while you navigate the warm weather with FYDELITY's Ultra-Slim WET / DRY Stash-It Fanny Pack Insert Case. The insert cases will fit into ANY Fydelity Fanny Pack.