Exos 46 Backpack

Exos 46 Backpack

• 70D x 100D Shadowcheck, 160D x 210 Window Ripstop
• Modified Airspeed Suspension with aluminum frame and 6061-T6 3D tensioned breathable mesh backpanel with side ventilation
• Highly ventilated and supportive Bio-Stretch™ harness with mesh covered slotted foam and adjustable sternum strap with whistle
• BioStretch™ hipbelt with mesh covered foam and ErgoPull closure
• Hydration compatible backpanel sleeve with external hose routing
• Superlight 7mm webbing side compression
• Stow-on-the-Go™ trekking pole attachement
• Front stretch woven pocket
• Cord tie-off points
• Under-lid pocket
• Zippered mesh hipbelt pockets
• Sleeping bag straps
• Side stretch woven pockets with inner or outer compression
• Single vertical zippered front pockets
• Single tool attachment
• Volume: 2600cu in / 43L (Sm), 2800cu in / 46L (Med), 3000cu in / 49L (Lg)
• Weight: 1lb 10oz / 740g (Sm), 1lb 14oz / 845g (Med), 2lb 2oz / 965g (Lg)
• Comfort range: Up to 30lbs

Over the long haul, going ultralight and carrying a pack without a supportive suspension system uses more energy than you save by cutting a few ounces. With the introduction of the Osprey Exos 46 Backpack, you can pursue your ultralight adventures with a supportive, ventilated suspension system in a super light package. The Exos 46 is a specialized lightweight pack with all the features you would expect from Osprey; a modified aluminum Airspeed Suspension system, padded BioStretch Harness and Hipbelt and plenty of pockets to keep you organized and your must-haves" at your finger tips. The Exos 46 can comfortably carry up to 28lbs, making it ideal for thru-hiking, weekend trips, and long day hikes.

Purchase USD$45 or more and get free shipping. The Osprey Packs Exos 46 Backpack is available through Altrec.com.

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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.