Sizing your pack is the key to not only comfort but the pack’s performance. Your height and weight don’t relate to certain sizes, people of the same height many times have different torso, hip and shoulder measurements. Take the time to get it right. If you're buying from one of our online partners measure yourself carefully and don't hesitate to call customer service at 866-284-7830 if you have questions. Always remember that there is no better way to fit a pack than with a store professional at your local specialty retailer.
Your torso size is the most important measurement and is what determines your pack size. Many of our packs are available in multiple sizes to fit a range of torso lengths. To determine your torso measurement have a friend help or go to your local shop where the knowledgeable staff can use an Osprey Pack Sizer. If at home have your friend measure the length of your back along the spine. Start at the iliac crest which is the top of your hipbones on the side of your body that act like a shelf. From this level on your spine, measure to the C7 vertebrae, the knobby bone at the base of your neck when you put your head down. Make sure to keep your back straight while your friend makes the measurement. This measurement determines your pack size, if you are in between two sizes we suggest you head to your local shop and try them both on.
Our Xenith & Xena, Aether & Ariel and Variant series packs offer interchangeable hipbelts. To determine your hipbelt size measure around your hips, at your iliac crest 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 both hip pads when securely tightened. Make sure to account for cold weather clothing for packs being used for winter activities. Use the chart below the torso size chart to determine the correct hipbelt size. Again your torso size is what determines your pack size not your hipbelt size.
Once you have the correct size pack, harness and hipbelt, it's time to correctly put it on and fine tune the fit. Put some weight in the pack (20 to 30 pounds of well distributed weight will do) and follow these steps below when putting your pack on to ensure optimal comfort and performance. In a good fit, there should be no pressure points and also no gaps between your body and the pack. Make sure to follow our guide on How to Pack Your Pack
Make sure all the pack’s compression straps are tightened and the shoulder harness, sternum straps, load lifter straps and hipbelt are loosened. We recommend you loosen these straps every time you take your pack off. Buckle and snug down the hipbelt with it centered over the hipbones. The padded portion should wrap well around the front of your hips.
Osprey ErgoPull- Nearly all of our hipbelts use our 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.
For further sizing and fitting instructions also see the owner’s manual for your pack or call our expert customer service staff at 866-284-7830.