Getting to the top during the hottest days of summer, whether it’s via hike or bike, requires a camel’s hump worth of agua. Having a lightweight, breathable hydration pack can make the difference between claiming the summit and merely taking its picture from below.

This season, manufacturers have made Hydrapak to backpacks what Vibram is to shoes. Stretch mesh and rigid frame technology are increasing airflow and comfort, while vibrant new colorways continue to fill the growing demand for eye-catching totes.

When it’s time to get up on some summertime vert, our 2016 Backpacks Buyers’ Guide has 11 options to achieve your perfect hike hydration.