MSR Expedition Service Kit - WL/WLI/WLU ProStretch smooth-faced technical layer for everyday

smooth-faced technical layer for everyday activities is made with a soft 94% recycled polyester fabric and feels like traditional fleece next to the skin

durable one-piece upper

breathable feel and firm compression for enduring performance on runs

Integrated whistle adds piece of mind

meaning that the bladder should be placed vertically for optimal flow

MSR Expedition Service Kit - WL/WLI/WLU ProStretch smooth-faced technical layer for everydayAn extended trip far away from home is no place to remember you forgot to replace that worn out O ring. But it happens. Be prepared for anything with MSR's Expedition Service kits. They provide comprehensive maintenance and repair solutions for your liquid fuel stove and pump in places where failure is not an option. This kit includes the necessary components for servicing MSR's WhisperLite, WhisperLite Universal, or WhisperLite International stoves.