• Hydroseal coated Antron nylon is waterproof and durable
• Waterproof taped seams
• External roll-top waterproof closure
• Durable buckle secures roll top
• Ergonomic design fits flat against back
• Four compression straps convert to shoulder straps and hip belt
• Foam-padded straps wrap over shoulder
• Dual daisy chains with ice axe loops
• Two side mesh pockets with one-hand pull elastic drawcords
• Stuffs in side pocket for storage
• Dimensions: 24 in. x 11 in. x 9 in./61 cm x 28 cm x 23 cm
• Volume: 1885 cu. in./30.9 L
• Weight: 12.2 oz./345 g

The performance-specialty DryComp Summit Pack from Outdoor Research had a snug fit on my back for moving fast. You can push the air out of the pack, compress the contents, then tighten the pack to your body as well. This offers a tight, wonderfully-snug fit around your body for fast motion.

I would use this pack for adventure racing in multi-sport kayaking-mountaineering/hiking, for whitewater or canoe portages, and highly recommend it for summit days on a mountain, where you will not be needing to carry much hardwear.

I lashed ice axes and poles to the pack's dual loops, riged light bungies to Z through the integral dual daisy chains, cliped biners to the daisy to clip into the shaft loops of my tools.

I often folded it into my main pack on longer trips to pull out for one-day or half-day use. The Summit Pack excells at this. You wouldn't want to add to it, which is part of the beauty, although it's design allows you to configure some customization easily.

I tested a prototype, which had no padding on the shoulder straps so I can not accurately attest to strap comfort. With the non-padded straps, it was fine with a jacket, easy to move fast on 14,000 ft peaks, with absolutely no side-to-side motion. Then I tested it on some speed ascents on mellow 11,000 foot mountains where mid-day was hot and I had to strip down to a strappy climbing top. Only then did it reveal some burn in the shoulder and poor wicking ability against the back, but the pack was not made to handle back moisture in warm weather. This however is easy to customize, and for the price, well worth it.