Use The Hydration Pack is built with versatility in mind, making it perfect for short day hunts, morning or evening stalks, for hikes, or even everyday needs. You can fit drinking bladders of up to 3 Liter capacity, or the the Drifter Hydration 2,5 l system, and offers additional storage space while maintaining a sleek profile. You have multiple options with this pack: Use it on its own Attach it to larger packs as a secondary lid and optional day pack Integrate it seamlessly with the Airframe Harness of your FHF Gear FOB Bino Harness and / or the FHF Gear Apex Belt to craft a lightweight and comfortable gear system. Features Made in USA Removable Shoulder straps Laser Cut MOLLE Panels on shoulder straps Use with Pack Attachment Kit Slim, streamlined profile Clamshell design for easy access Zippered storage pockets ( 1 internal / 1 external ) External zippered storage pocket MOLLE Panel for accessory attachment such as E4 Pouch Attaches to larger packs as secondary lid Weight: 680 Grams ( 24 oz ) Dimensions: 48 cm x 25,4 cm x 7,6 cm ( 19"x 10" x 3" L/W/D ) Capacity: 6 liters or 375 cubic inches Materials 500D Cordura® Squadron Laminate YKK Zipper Military Grade Hardware Nylon Webbing Air Mesh Backer