Osprey Packs Atmos 50 Backpack

Osprey Packs Atmos 50 Backpack

Providing optimal ventilation without sacrificing comfort or support, the newly redesigned Osprey Atmos 50 Backpack carries your load closer to your back so you can log the miles like never before. This lightweight pack design certainly isn't the lightest on the market, but it the most comfortable and superbly detailed. Built with gender specific BioStretch Harness and Hipbelt for a secure fit and the AirSpeed Suspension system, the Atmos 50 can comfortably carry a load of up to 40lbs, making it ideal for active adventures, thru-hiking and superlight backpacking trips. Plenty of pockets keep you organized and dual hipbelt zippered pockets keep must-haves at your finger tips.

• 210D Twill Velocity Cordura®, 160D x 210D Window Ripstop Cordura®
• Airspeed Suspension system with LightWire Alloy Frame and 3D tensioned breathable mesh back panel with side ventilation
• Gender specific BioStretch™ Fixed harness with mesh covered perforate foam and slides adjustable sternum strap
• Gender specific BioStretch™ built-in hipbelt with mesh covered perforated foam and ErgoPull closure
• Hydration compatible, backpanel sleeve with hanger and dual side hose exits
• Floating top pocket
• Front stretch woven pocket
• 2 side stretch woven pockets with inner or outer compression
• 2 zippered hipbelt pockets
• Stow andGo™ trekking pole attachment
• 2 ice tool loops with bungee tie-offs
• Removable sleeping bag straps
• Volume: 2800cu in / 47L (Sm), 3000cu in / 50L (Med), 3200cu in / 53L (Lg)
• Weight: 3lb 4oz / 1.47kg (Sm), 3lb 6oz / 1.52kg (Med), 3lb 8oz / 1.57kg (Lg)
• Comfort range: up to 40lb / 18kg

Buy the Osprey Packs Atmos 50 Backpack from Altrec.com. Orders over $45 qualify for free shipping.

Reviews - Osprey Packs Atmos 50 Backpack

rogerio miorando - 2009-10-01

Great pack, light and comfortable
I purchased the Atmos 50 backpack for a 3 day hike on Patagonia. The pack is comfortable, form fitting, and very light. It has lots of adjustments and plenty of room.

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johnpaul jenkins - 2009-08-22

this is a very good pack
This is an awesome pack...I'll be taking it to Asia this fall

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Ronan - 2009-07-22

I Nearly Forgot I Was Even Wearing It
This is the best pack I have ever owned. I live in a wet climate and this pack exceeded my expectations even in this regard by keeping my items dry while still accessible. Extremely comfortable, and form fitting. This pack is definitely going to Mozambique with me!

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Sizing Chart

All Osprey packs, save the transit bags, are available in multiple sizes to fit a range of torso lengths. To find your torso length, have a friend measure your back along the spine from the level of your iliac crest (the top of your hipbones) to your C7 (the knobby bone at the base of your neck).

To determine your hipbelt size measure around your hips, not your waist. A properly fitted hipbelt rides centered over the hipbones and needs to be very snug; after all it will be carrying the bulk of the pack's weight. The padded portion should wrap well around your hips, leaving a gap of 3 to 6 inches between the tips of the pads when securely tightened.

Nearly all Osprey hipbelts use an exclusive ErgoPull design. It creates mechanical advantage to provide extra leverage in cinching down the hipbelt. The ErgoPull design also draws tension along the top and bottom of the belt, not through the center, so it distributes pressure more evenly over the padding and relieves direct pressure on the hipbones.

Step 3 - Harness

Osprey Crescent & Luna, Aether & Ariel and Waypoint packs offer interchangeable shoulder harnesses. Harness sizing usually corresponds to pack size, but your best bet is to try one on. A properly fit harness should terminate 2 to 3" beneath the armpit. Webbing should not touch the body. By breaking the hook and loop connection and sliding the harness up and down the backpanel the torso length can be adjusted up to 3". (see illustration).

Once you have the correct size pack, harness and hipbelt, and the torso length set properly, it's time to put some weight in the pack (20 to 30 pounds of well distributed weight will do) and dial in the fit. First, snug down the hipbelt and harness. Connect the sternum strap (A) - position it about 2 inches below your collarbones and snug it down lightly. Finally, tighten the load lifter straps to draw the load solidly against your back. The lift straps (B) should come off your shoulders at a 45 to 60 degree angle in Osprey's ReCurve and Ethereal Suspension packs. In other models these straps serve more as compression straps and ride flatter; they may even angle downwards.

In a good fit, there should be no pressure points and no gaps between your body and the pack. With Osprey's ReCurve packs, final tweaking may involve custom fitting the aluminum stays to your back.