UltrAspire 1 Litre Water Reservoir 2.0

• Comet bite valve with twist shut-off: High-flow HydraPak valve twists closed to positively shut off the water flow when not in use.
• 1 litre capacity: Compact reservoir capacity for compatible running vests and packs where a larger reservoir is unnecessary.
• Wide Slide Seal opening: Opens widely for straightforward refilling and seals across the top of the reservoir.
• Reversible construction: Turns completely inside out for thorough cleaning and drying.
• Plug-N-Play quick disconnect: Separates the reservoir from the drinking tube so the hose can remain routed through the pack during removal and refilling.
• High-flow drinking system: Uses 5/16in diameter tubing for good water flow through the Comet bite valve.
• Flexible polyurethane construction: Designed to remain flexible while resisting punctures during normal use.
• Ultrared hose: Approximately 94cm long and supplied as standard with the reservoir.
• Hot or cold use: Can be frozen or filled with hot water up to a maximum temperature of 60°C / 140°F.
• BPA, phthalate and PVC free: Made without BPA, phthalates or PVC.

Check that your running vest or pack is designed to accept a 1 litre reservoir and has suitable internal reservoir storage and a hanger or attachment point.

At approximately 24.1 × 15.2cm, the reservoir is shorter than the 2 litre version while retaining a similar width. Route the Ultrared hose using the pack's shoulder-strap loops or other hose-retention points so that the bite valve remains easy to reach while running.

For advice on reservoir capacity, baffled designs, quick-disconnect hoses, cleaning and choosing between a reservoir and front soft flasks, see our Running Hydration Bladders & Reservoirs Guide.

If you are unsure whether this reservoir is suitable for your running pack, get in touch for straightforward advice.