43. The best hydration pack to carry on strenuous hikes

10 L Hydration Pack, available at Hydro Flask, $165

Blurb: I used the 10 L Hydro Pack to hike more than seven miles through the Rocky Mountains. I was highly impressed with how my water remained cold throughout the whole day. In addition, the back panel kept my back cool and comfortable all day. —Francesca Rea, content producer

Read our review: This Hydro Flask hydration pack kept my water cool for over 4 hours on a recent hike — it even had room for my small essentials