Silva - Hydration Reservoir 1L throw bag while Zoned Insulation concentrates fill

while Zoned Insulation concentrates fill over your core and shoulders where heat retention is critical and reduces it where your sleeping pad handles insulation from below

a floating base

The adjustable tunnel with removable suspenders lets you dial in the fit over whatever you're wearing

Storage: Spacious dry storage for day trips and overnight excursions

Silva - Hydration Reservoir 1L throw bag while Zoned Insulation concentrates fillSilva Hydration Reservoir 1L 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