Here's our short list of Hydration Compatible Day Packs that will quench your thirst for keeping your hands free while hiking, biking, climbing, running, trekking and all of the other outdoor activities that are even better when you aren't reaching for a bottle of water.
The CamelBak Fourteener 20 Hydration Pack is a compact and technical pack for done-in-a-day alpine adventures and everyday outings. It is shown here in Tahoe Blue/Lime Punch and is available from REI, $92(when it's on sale)-$125.
REI Co-op Flash 18 Pack is handy in town, on trails and for short hikes away from basecamp, the Flash 18 pack cleverly converts into a stuff sack when you turn it inside out. Available from REI, $39.95.
The Marmot Kompressor Plus 20 Pack maximizes comfort and portability, this ultralight daypack hugs your body with its ergonomic air-mesh shoulder straps and wraparound compression for a bounce-free dash to the summit., available from REI, $65.