Flying Circle Bags Hydrapak Presidio
Flying Circle Bags' Presidio Pack with Hydrapak Reservoir

Hydration backpacks are very common nowadays, but some are lightyears ahead of the pack.

Enter Flying Circle Bags.

The company now offers a complete line of integrated hydration backpacks with the Hydrapak 3-liter reservoir system.

Flying Circle currently has four styles in its hydration line, including the popular Stryker Backpack and Large Field Pack, and the new Presidio Pack and Load Bearing Hydration Pack.

The 3-liter Hydrapak reservoir is the largest available in Hydrapak’s First Wave line of Military Grade Reservoirs. Its durability and versatility in the field make it the perfect partner to Flying Circle’s rugged military packs.

Constructed with TPU (thermoplastic polyurethane) for superior strength and flexibility, the naturally anti-fungal Hydrapak reservoir is reversible for easy cleaning and drying. The Hydrafusion insulated tube is designed to protect against snags and rips and the Surge Bite Valve offers a high flow rate with twist locking on/off mechanism and dust cover.

The Plug-N-Play quick disconnect is a push-button tube removal system that keeps the reservoir sealed when the tube is removed for easy filling, modularity and system cleaning. Additionally, the Plug-N-Play links with in-line water filtration options.

There is also a patented leak proof wide slider opening for quick filling. The reservoir is free of BPA and PVC, is dishwasher safe and comes with a no-leak product warranty.

For more information Flying Circle Bags complete hydration line complete with Hydrapak, please visit

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