Our Ultimate Source M.C. Hydration System is designed to fit US Marine Corps FILBE gear. This low profile bladder features all the Source Hydration advantages.

• Compatible with the Helix Valve and the Storm Valve
• Helix Valve features a rounded shape that requires no mouth orientation for easy use; built-in "bio-net" style shut–off mechanism prevents spilling during transport
• Hi-Flow Storm-Valve: No-bite push-pull valve with integrated shut-off mechanism; easy disassembly for cleaning
• Angled Valve: Turns 360 degrees for perfect valve/mouth orientation; 25cm shorter tube and less excess tube bouncing around the chest
• Dirt shield valve cover to protect mouthpiece from dirt
• Cool Weave Cover Tube: Insulates and blocks UV-light; water stays cool and inhibits bacteria growth
• Taste-Free System: Co-extruded PE film retains pure liquid taste without plastic flavor; BPA and phtalate free
• Glass-Like Film with Grunge-Guard Technology: Inhibits bacteria growth on reservoir and drinking tube surfaces
• Care-Free: cleaning by simply rinsing the system and hanging it opened until dry (if used with water)
• Widepac Closure: Patented slide closure for easy draining and cleaning; airtight seal
• IRR Reduction Fabrics meets military IRR standards to provide improved safety during low light
• Large NC Filler Cap: air tight, low profile one hand operated; compatible with commonly used personal filtration systems; cap fits FILBE hydration filler opening