Iamp39m only selling this as itamp39s more single purpose than Iamp39d likeampnbsp Itamp39s a great small hydration pack that is built really nicelyampnbsp Itamp39s older but in new conditionampnbsp It fits a 3L Camelbak hydration bag has the zipper enclosure to cover and protect the bag plus a large zippered pocket accesible from both sides which I tried to show in the pictureampnbsp It has nice padding with an opening in the center as you can see on the one picture which allows for breathabilityampnbsp The cords clips fasteners and strap keepers are really nice too