Osprey Packs Argon 70 Backpack

Osprey Packs Argon 70 Backpack

Continuing the deluxe custom fit legacy with Recurve suspension and BioForm A/X components, the Osprey Aragon 70 for men is the most customizable and comfort oriented packs. Features include a 40d Sil Nylon AquaSource that converts to a hydration pack with padstraps, vertical zip access into main body, wide mouth sleeping bag compartment, top lid that converts to a lumbar pack with AirScape lumbar, and zippered easy access side pocket

• 40d Sil Nylon AquaSource converts to hydration pack with padstraps
• Vertical zip access into main body
• Wide mouth sleeping bag compartment
• Top lid converts to lumbar pack with AirScape lumbar
• Zippered easy access side pocket
• Gender specific dual-density harness with soft foam cut outs at neck and armpit and concealed sternum strap
• Gender specific Bioform CM™' A/X moldable belt
• StraightJacket compression
• Laser cut finishing details
• Stretch woven front and side pocket
• 7075 T6 aluminum ReCurve rods
• HDPE framesheet with single 2024 AL 2/3 length, 12mm. stay
• AirScape backpanel with tri-section 10mm. Ridged foam and central air chimney
• Dual density foam harness with softer cutouts in neck and armpit region
• Backpacking/Extended trips
• Volume: M 4300 cu. in. / 70 L., L 4500 cu. in. / 73 L., XL 4700 cu. in. / 76 L.
• Weight: M 5.0 lbs. / 2.52 kg., L 5.12 lbs. / 2.61 kg., XL 5.15 lbs. / 2.69 kg.

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Osprey Packs: Argon 70 Backpack

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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.