When it comes to water carry on trail, I’m always looking for two things: ease of use and ease of access. In this video I break down Hydrapak’s new PackFlask+ and why it checks both boxes. I’ve been a big fan of Hydrapak for years (my 4L Seeker gets used anytime I’ve got a long stretch between water stops), and a big reason is that 42mm opening that plays nice with popular filters. The PackFlask line builds on that idea by pairing a soft flask with a purpose-built shoulder strap pocket so your water is right where you want it. The PackFlask+ takes it a step further by integrating a filter into the system. You’re getting a 750ml soft flask, an ultralight shoulder strap carrier, and a fast-flow filter that lets you drink right through the high-flow self-sealing nozzle. The filter is rated to remove common waterborne bacteria like E. coli and parasitic cysts, and it’s designed for speed—over a liter per minute—so you’re not sitting around squeezing for ten minutes just to get a drink. I also like the little details, like the integrated dust cover on the cap and the fact that the whole thing packs down as the flask empties.