Fit Calculator

Get the backpack that's just right for you.

Why Fit Matters

When your tent, sleeping bag, food, and extra gear tag along for the ride, a correctly sized pack is key to making the most of your backpacking adventure. A pack that fits your body ensures the load remains supported, balanced, and comfortable as you move. The good news is that getting a proper fit is pretty straightforward, beginning with a torso-length measurement. You’ll need a friend and a flexible tape measure to get started.

How to Measure Your Torso Length

STEP 1

Find your iliac crest. This is bony part at the top of each hip.

STEP 2

Find your C7 vertebra. This is the vertebra that sticks out when you tilt your head down.

STEP 3

Have your friend measure from the C7 down the spine to the iliac crest. This distance is your torso length.

Fine-tune the Fit

Once you’ve established your torso length and selected your pack, the next step is to fine-tune the fit. Start by loosening all of the pack’s straps, including the hip belt, and place about 15lb of weight in the pack to mimic a lightly loaded pack.

Hip Belt

Throw the pack on and place the hip belt over your hip bones. Close the buckle and tighten the straps to snug but comfortable, keeping the buckle centered. Keep in mind that the hip belt supports 60 to 80% of the pack’s weight. Proper hip belt adjustment is 4”-6” between the hip belt pads.

Shoulder Straps

Next step is tightening down the shoulder straps. They should closely wrap your shoulders to hold the pack’s load forward, without creating a gap between the shoulders and pack body. Remember that these straps do not support the pack’s weight.

Load Lifter

The load lifter straps are attached to the shoulder straps, angling back toward the pack body at a 45-degree angle. Tighten these straps to pull weight off the shoulders, but not so tight that a gap forms between the tops of the shoulders and shoulder straps.

STERNUM STRAPS

Adjust both sides of the sternum strap to a comfortable height across your chest. Buckle the strap and tighten to pull the shoulder straps inward, which provides additional load stability and allows your arms to move without restriction.

Conclusion

Getting an accurate torso-length measurement, selecting the correct pack for your needs, and fine-tuning the fit are the main steps in ensuring your time spent backpacking is as enjoyable—and comfortable—as possible.

Torso
Length
14in/
35.56cm
15in/
38.1cm
16in/
40.64cm
17in/
43.18cm
18in/
45.72cm
19in/
48.26cm
20in/
50.8cm
21in/
53.34cm
22in/
55.88cm
23in/
58.42cm
24in/
60.96cm
Pack Size XS XS XS-S S S-M M M-L L L-XL XL XL
Torso
Length
14in/
35.56cm
Pack Size XS
Torso
Length
15in/
38.1cm
Pack Size XS
Torso
Length
16in/
40.64cm
Pack Size XS-S
Torso
Length
17in/
43.18cm
Pack Size S
Torso
Length
18in/
45.72cm
Pack Size S-M
Torso
Length
19in/
48.26cm
Pack Size M
Torso
Length
20in/
50.8cm
Pack Size M-L
Torso
Length
21in/
53.34cm
Pack Size L
Torso
Length
22in/
55.88cm
Pack Size L-XL
Torso
Length
23in/
58.42cm
Pack Size XL
Torso
Length
24in/
60.96cm
Pack Size XL