Osprey Packs Exposure 50 Backpack

Osprey Packs Exposure 50 Backpack

Perfectly suited for gear-intensive technical climbs and ski mountaineering trips, the Osprey Exposure 50 backpack comfortably carries loads of 55 to 60 pounds. For a relatively small pack this is a rather amazing feat, accomplished by a lightweight yet exceedingly strong suspension system composed of a tapered HDPE framesheet with a 7001 aluminum alloy tubing perimeter with an 6005 aluminum alloy head cup extension. And to further reduce the weight, Osprey made a series of circular cutouts in the framesheet. Over the top of the framesheet a thermoformed backpanel offers luxurious contact with the climber's back and a heat moldable hipbelt disperses the weight throughout the hips, taking the edge off lengthy load hauls to the base of climbs. Although the Osprey Exposure 50 backpack has a simple top loading design, the innovative features, in addition to the suspension system, are well thought out and all have a practical use. For example, on either side of the main pack bag, just below the floating top pocket, rope tie-ins secure a coiled rope so it rides without shifting back and forth. Other examples include an internal hydration bladder pocket, and a straightjacket compression system that allows shredding alpinist the ability to carry a snowboard on the Osprey Exposure 50 backpack. Of the four packs in the Osprey Exposure series, only the Exposure 50 offers a crampon patch and its also cleverly equipped to carry skis, a snow shovel, wands, pickets, and ice tools. The custom moldable hipbelt even has gear loops for convenient access to climbing hardware.

• Key fabrics: 210 denier broken twill Cordura® high tenacity nylon, 210 x 420 denier ripstop nylon, 500 denier Cordura@reg; high tenacity nylon
• HDPE framesheet with 7001 / 6005 aluminum alloy tubing frame also forms a head cavity
• Thermoformed backpanel
• Floating top pocket with under-lid rope tie-ins
• Removable Custom Molded hipbelt with ErgoPull technology and gear loops
• StretchComfort shoulder harness with rescue whistle
• 3-point haul system
• Internal red daisy chain for easy gear organization
• Internal hydration pocket will accommodate most 2-3 liter bladders
• Shovel wing and leashless tool holsters
• Front tool handle tie-off
• Straightjacket compression system secures a snowboard and keeps loads from shifting
• Wand, picket, etc. side pocket
• Front hypalon crampon patch with bungee attachment and ice tool buffer
• Osprey Excessory compatible
• Hypalon reinforced side ski carry straps
• Capacity: 2,800 cu. in. (47 l) in small, 3,000 cu. in. (50 l) in medium, 3,200 cu. in. (53 l) in large
• Weight: 3 lbs. 11 oz. (1.67 kgs.) in small, 3 lbs. 15 oz. (1.79 kgs.) in medium, 4 lbs. 3 oz. (1.90 kgs.) in large

---

Write Your Own Review

Product:

Osprey Packs: Exposure 50 Backpack

Rating:

- 5: great
- 4: above average
- 3: average
- 2: below average
- 1: poor

Summary:

Comments:

Name:

 

Show with my review

Email:

 

Sign Me Up for regular emails about the latest Gear and Hottest Deals.

 

After you click "Submit," your review will be entered into our database for final approval before it is posted live to the public. We will edit only to address inappropriate or offensive content.

Sizing Chart

Step 1 - Pack Sizing

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).

Step 2 - Hipbelt Sizing

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.

Crescent Series
Luna Series

Torso Length	Pack Size	Hip Measurement	Hipbelt Size
> 22"	XLarge	> 36"	XLarge
20-22.5"	Large	33-37"	L or WL
18-20.5"	Medium	30-34"	M or WM
16-18.5"	Small	27-31"	S or WS
14-16.5"	XSmall	< 28"	WXS

Aether Series
Ariel Series

Torso Length	Pack Size	Hip Measurement	Hipbelt Size
> 20"	Large	> 36"	XLarge
18-20.5"	Medium	33-37"	L or WL
18.5"-	Small	30-34"	M or WM
-	-	27-31"	S or WS
-	-	< 28"	WXS

Exposure Series
Switch Series [55+5, 40+5, & 25+5]

Torso Length	Pack Size	Hip Measurement	Hipbelt Size
-	-	> 36"	XLarge
> 20"	Large	33-37"	L or WL
18-20.5"	Medium	30-34"	Medium
< 18.5"	Small	31"	Small

Atmos Series
Stratos Series [34, 32, & 24]

Torso Length	Hip Measurement	Pack Size
> 20"	> 33"	Large
18-20.5"	30-34"	Medium
< 18.5"	< 31"	Small

Stratos Series [18 & 12]
Switch Series [18 & 14]
Daytool Series [Focus, Flux]

Torso Length	Hip Measurement	Pack Size
> 18"	-	M/L
< 18.5"	-	S/M

Waypoint Series

Torso Length	Hip Measurement	Pack Size
> 20"	> 33"	Large
18-20.5"	30-34"	Medium
< 18.5"	< 31"	Small

ErgoPull

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).

Men's	SM	MD	Large	XLarge
Women's	WXS	WSM	WM	WL

Step 4 - Overall Fit

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.