Review: LifeStraw Flex
Check out Matt Samet's author page.
Lifestraw
Climbing Holiday Gift Guide: LifeStraw Flex
A versatile 5-in-1, 2-stage water filter.
Climbing Holiday Gift Guide: LifeStraw Universal
Turn your favorite water bottle into a powerful water filter.
Sponsored: The Making of Uncharted Lines
Scouting and filming the adventure bouldering film, Uncharted Lines.