Let the water flow freely with the pocket sized MSR Trailshot. When you’re knee deep in the ultimate fast paced adventure, often size actually matters. The Trailshot by MSR answers this call with a wicked ultra light, super small water filter. Designed for trail runners, hikers and mountain bikers, the Trailshot backcountry microfilter provides the refreshing, clean water you so desperately deserve. Weighting in at 142grams, the Trailshot microfilter easily disappears in your stash pockets. As simple as unfolding the drinking tube, the one handed operation easily fills 1 liter bottle in 60 secs, or gives you a quick drink without lying in the dirt. Meeting US EPA drinking water standards and NSF protocol P231 for removal of bacteria (99.9999%), protozoa (99.9%) and nasty particulates, the MSR Trailshot microfilter is a great water purification solution that won’t slow you down.