Here's what other sites are saying:
Let your no-holds barred attitude reign supreme with the Lowe Alpine Mountain Attack 45:55 Backpack. Spend the weekend pitching insane ice in Ouray, skinning and skiing through untamed terrain in the Sierras, or backpacking along Isle Royale without leaving essential gear behind. Without the lid, the pack offers 45 liters of storage--bring everything you own for one night away from home, or use your minimalist sensibilities when packing for a few nights on the road. With the lid, you have 55 liters and can throw your trail-weary bits in the lid so your dirty socks don't smell like dinner, and vice versa. Ice axes rest securely in Lowe's proprietary HeadLocker system so you can freely climb without accidentally self-arresting on the concrete. Throw your ropes or crampons under the lid so inner pack space remains available for important stuff like 'biners and beverages. If the going gets tight and you must separate from your pack, thread a rope through the grab handle and lash loops and pull your precious gear to safety. These can also be used if you find yourself in need of a crevasse rescue. Compression straps on the side do double duty, depending on your needs. If you're only going out for a day hike, take out the frame and eliminate excess volume by pulling the straps taut. If your chosen backcountry tour finds you off the snow for any amount of time, the compression straps hold your skis so you're not skinning your way up a dirt trail. The AdaptiveFit harness molds to your body when cinched down, and glove-friendly Load Locker buckles mean your fingers won't get frostbite when you need to adjust the pack. Tip grippers hold your poles when you don't need them, and multiple points of entry give you gear access options, none of which necessitate completely emptying the pack.
CLOSEOUTS . Lowe Alpine's Hyperlite backpack can't be beat for a day of mountain ascents -- the Mountain Attack 45 is ultra light and ultra functional. Top loading with interior-exterior zip pockets in lid Hydration compatible Tuck-away ice axe loops Removable rope compressor Padded waist belt Padded back panel and shoulder straps Compression straps Water bottle pockets Internal frame Fits torsos: 18 Size (HxWxD): Approx. 24x14x8 Capacity: 2700 cu.in. Weight: 2 lb. 13 oz. Fabric: Durable ripstop nylon CLOSEOUTS . China.
- Sierra Trading Post
Ultra-lightweight climbing pack for fast-moving alpinism, combining durability with total functionality. Padded AirZone® back system features venting channels that deliver cooling comfort. Bi-laminate padded shoulder straps with sternum strap and a padded waistbelt keeps pack securely situated on your body. Gear loops on the padded waistbelt hold your gear within easy reach. When wearing the pack with a seat harness, the padded waistbelt can be removed and the tuck-away webbing belt used instead. Extendable lid features both an external and internal pocket; Spindrift Weatherlock™ collar keeps contents in and the weather out. Features pockets for wands, tuck-away ice axe loops and removable rope compressor. Internal pocket holds hydration reservoir (sold separately) for hands-free drinking on the trail. Lightweight framesheet stiffener enhances structure and support. Side compression system cinches down reduced loads, improving stability. Alloy buckles are light, strong and easy to use with mittens or gloves. Constructed of 250-denier ripstop nylon and 600-denier texturized polyester, it's super strong and tough yet lightweight.
Lowe Alpine Mountain Attack 45:55
Lowe Alpine Mountain Attack 45:55 XL
Lowe Alpine Mountain Attack 35:45
Lowe Alpine Alpine Attack 35:45
REI Trail 40 Pack
Osprey Stratos 34
$105 - $160
The North Face Casimir 36
Mammut Trion Guide 45+7
$135 - $179