• Durable, water resistant, light weight Ripstop nylon construction. Adjustable chest strap with integrated whistle. Floating hip belt with easy adjust suspension system compression straps

• Well vented padded Airmesh back panel. Ergonomic, Airmesh padded shoulder straps with hydration tube sleeves. Easy reach & adjust shoulder strap suspension system load lifters

• "On the Fly Side Zipper" - External access to main pack compartment. Internal and External access, hydration bladder compartments. Easy access side zip storage compartment (great for maps, etc.).

• 6 Easy access high volume external mesh pockets. "Beaver Tails" 4 easy access shoulder strap mesh pouches. 2 Hip belt, easy to reach mesh water bottle holders. 2 Adjustable or removable, easy access zippered waist belt pockets. 2 Convenient zippered hood pouches

• Pack weight 38oz. Pack Volume: 30 liter internal storage capacity & 10 liter external mesh storage capacity (1,830 to 2,440cu. in.). Pack dimensions; 20"H x 12"w x 6"d / 50.8cm x 30.5cm x 15.2cm

The AS-1 Backpack is designed by former World Champion adventure racer and mountain biker Mike Kloser based on a long history of pack design and testing. For those adventurers wanting the stay organized, the AS-1 fits the bill with a plethora of pockets for every function. The 2011 Outside Magazine Buyer's Guide ranked it a top pack for the fast and light crowd. Features include: Zipper pocket, containing external helmet stowage mesh, 4-Side compression straps, (double as Ski or Snowboard attachment straps). 2 Ice axe or Ski/Trekking pole loops and attachment straps. 4 Webbing loop tabs on bottom of pack for attaching camping gear. Bar tack reinforced stress point stitching. YKK Zippers with easy grab lightweight zipper pulls. 3M reflective cord with cord locks.