You are looking at an excellent, no longer in production Arc'Teryx Naos 55 waterproof backpack in a size Reg/Medium which is good for 18-21" torso length. Has been lightly used and has a few light scuffs but all are superfluous and don't compromise it's waterproof fabric. It's ready to hit the trail. Here are the specs: Details Arc'teryx is known for their innovative products, and this groundbreaking model brings a new level to performance with a completely waterproof design! -Made with revolutionary 420Advanced Composite Textile VaporTight™ material to keep contents dry
-Top-loading main compartment features a DryBag™ lid-closure system for easy packing and added weatherproofing
-WaterTight™ zippers on all pockets prevent water penetration
-All seams are sealed for weather-tight protection
-Hydration-compatible design features reservoir pocket with a waterproof hydroport for drinking tube (reservoir sold separately)
-Radially formed shoulder straps and Radially formed Binary™ hipbelt offer a nice fit
-Hipbelt suspension features a Load Transfer Disc™ for superior range of motion and easy disconnect from pack
-Simply grab hipbelt at center, twist in counter-clockwise direction and belt releases from center disc; reverse actions to connect
-Zippered large Kangaroo side pocket and zippered smaller pocket on other side for storage of oft-used items
-All molded components and suspension system are laminated and bonded for superior strength
-MonoFrame™ backpanel is thin and light with EVA foam, Kydex plastic and 2 aluminum stays to create a direct link between back, suspension and bag Specification for torso / waist and hips / base volume (cu. in. and liters) / weight are as follows:
Small - 16-19 in. / 27-32 in. / 3,230 cu. in. / 53 liters / 4 lbs. 6 oz.
Medium - 18-21 in. / 32-37 in. / 3,420 cu. in. / 56 liters / 4 lbs. 10 oz.
Large - 20-23 in. / 37-42 in. / 3,600 cu. in. / 59 liters / 4 lbs. 14 oz. Get this sweet pack while you can when you get it from me Recycled!