Staying hydrated on a long run is straightforward when your water stays cold and your reservoir stays put, and the Silva 1L Hydration Reservoir is built specifically to do both inside the Strive running pack series.
The standout feature is Hydrapak's IsoBound insulation technology, a four-layer design that prevents body heat from transferring into the reservoir, keeping your water cold up to 38% longer than a standard bladder. On a warm summer trail run or a long paddle with a running approach, that difference is noticeable. The slim vertical design fits cleanly inside the Strive series with hose routing built into the pack's outlet points, so access is always within reach without rummaging.
Construction is ultra-durable TPU with RF welded seams for strength and flexibility that holds up to repeated use and compression inside a pack. The Hydrapak Slide-Seal top opens wide for quick filling and locks tight to prevent leaks, and a tether keeps the closure from going missing mid-trip. The self-sealing bite valve prevents drips between sips, and a twist lock bar adds a secondary seal when the hose is stowed. BPA-free, washable, and ready for regular use.
- Volume: 1 litre
- Weight: 120 g
- Hydrapak IsoBound insulation: keeps fluids cold 38% longer than standard reservoirs
- Material: ultra-durable TPU with RF welded seams
- Hydrapak Slide-Seal top with tether
- Self-sealing bite valve with twist on/off lock bar
- Slim vertical design custom-fit for Silva Strive series
- BPA-free and washable