Backpack size guide: How to find your back length
Find your torso length to choose the right size backpack for you
Whether you’re trekking the Himalayas, sport climbing or fell walking, you need a backpack that moves with you across the terrain. Finding your back length measurements will help you to select the right size pack for your body for the most comfortable carry, wherever your adventures take you.
What is back length?
Your back length can be found by measuring from your C7 vertebra (the bony protrusion at the back of your neck) to your iliac crest (the top of your hips).
How to measure your back length to fit your backpack
You will need:
- A tape measure
- A friend to help you out
Place your hands on your hips and tilt your head forwards.
Ask your helper to measure from the bony protrusion at the back of your neck to where your hands sit on your hips.
This measurement will give you an idea of which back length to choose.
Lowe Alpine backpack size guide
As a guide our packs fit as follows:
|16″/ 41cm||18″/ 46cm||20″ / 51cm|
Lowe Alpine packs flex to fit to your body shape, so don’t worry if your back length does not measure exactly 16, 18 or 20 inches. We have adjustable back lengths on many styles of packs in our ranges.
|VT Flex / VT Plus||17-21” / 43-53cm||19-23” / 48-58cm||21-25” / 53-63cm|
|V-Trax||14-18” / 36-46cm||16-20” / 41-51cm||18-22” / 46-56cm|
|Air Contour+||17-19” / 43-48cm||19-21” / 48-53cm||21-23” / 53-58cm|
|Air Contour||14-18” / 36-46cm||16-20” / 41-51cm||18-22” / 46-56cm|
|AirZone Centro||16-18” / 41-46cm||18-20” / 46-51cm|
|Kulu Airmesh||16-18” / 41-46cm||18-20” / 46-51cm||20-22” / 51-56cm|