This hydration kit is what I take for filtering water on backpacking trips. It’s compact, simple to use, and very lightweight.
I’ve made quite a few gear upgrades since the end of last year’s backpacking season, including a tent, sleeping quilt, rain jacket, insulated puffy, GPS device, and a camera. Beside replacing broken or lost gear, most of these items were upgraded so I could carry less weight while backpacking.
All of these gift ideas are from my own personal gear kit, items that I use regularly and highly recommend.