MSR Trail Base Filter Kit Size:4L Comfort -5°C(23°F)Limit -12°C(10°F)

Comfort -5°C(23°F)Limit -12°C(10°F)

easy-lift handle flips over the fitted lid to lock it in place

The Rear Hook Walk System is simple

Meet the better-than-ever Men's Merino 250 Base Layer Crew

Non-marking rubber outsole

MSR Trail Base Filter Kit Size:4L Comfort -5°C(23°F)Limit -12°C(10°F)To meet the needs of multi activity backcountry adventurers, we set out to engineer the most versatile water filter ever. The Trail Base microfilter kit features modular components that allow it to be used as a gravity system at camp, a pocket sized filter on the trail, or a fast and light reservoir when you need to carry clean water with you. Whether youre hiking, biking or basecamping, the Trail Base water filter kit offers incredible flexibility