PiggyBack Pack – 8L Modular Hydration & Gear Expansion Pack

Compact Size, Full-Scale Modularity

The 8L (500 cu. in.) PiggyBack Pack is designed to integrate seamlessly with the FullTang Tactical chest rig–kit bag Shoulder Harness or Low-Pro Shoulder Straps. Built to carry hydration bladders up to 3L (100 oz.) and essential gear, it delivers maximum versatility in a slim 3-inch profile.

Built for Adaptive Field Use

• Hydration & Comms Ready – Fits bladders up to 16" x 9.5" or comms equipment, with multi-direction tube routing

• Multiple Carry Modes – Attaches to chest rig harness, worn standalone with Low-Pro Straps, or piggybacked to Minuteman Packs and other rucks

• Full-Length Admin Storage – Front zippered pocket with laser-cut PALS/MOLLE for additional pouch attachment

• Field-Configurable Attachment Points – Lashing loops and removable compression straps for pack-to-pack or plate carrier mounting

• Structured Comfort – Removable ¼" foam panel adds shape and comfort for long wear

Built for the Mission

Drop your main ruck at base camp and detach the PiggyBack for recon, patrols, or day hikes. Its compact frame, hydration compatibility, and modular mounting options make it equally suited for tactical deployments or minimalist backcountry travel.

Specifications

• Capacity: 8L / 500 cu. in.

• Depth: 3"

• Max Bladder Size: 3L / 100 oz. (up to 16" H x 9.5" W)

• Material: MIL-SPEC Cordura®, Squadron™ laminate, YKK zippers

• Attachment Options: Chest rig harness, Low-Pro Shoulder Straps, rucksack compression straps, beavertail mounts

• Included: (2) 1" webbing straps for chest rig connection, extension straps for standalone carry, removable ¼" foam panel

• Hydration Tube Routing: Left, right, or center top

The PiggyBack Pack packs hydration, storage, and mission versatility into one compact, durable platform—ready to expand your loadout without weighing you down.