The Slingback Bottle Pack holds up to a 32 oz Hydro Flask bottle plus all the essentials you need. The Slingback Bottle Pack is right at home on urban adventures, daily commutes and adventurous outings. Smoke free and pet free home. New to Poshmark? Use sign up code “JOYCECB123” to save $10! Tags: Categories Accessories, Accessories, Bags & Packs, Bags & Packs, Gifts For Her, Gifts For Him, Hiking, Outdoors, Hydro Flask, Men, Women