Patagonia Snowdrifter 20L Product Number: STY48190FA16 Discontinued, ONE Size The size of the backpack is measured with a measuring tape (from seam to seam) and is shown in the photos. It can be adjusted with the adjusters, except for those who are small or large. For reference, it can be worn by people who usually wear men's L or women's L. Used 3 times on the slopes. I often use one with an airbag, so I'm storing this at home. There are no noticeable damages, but there are some minor scratches and dirt due to use. Please understand that this is a used item. This is a discontinued model, and the current 20L model no longer has the straps on the back, so you can't carry skis, snowboards, or snowshoes. When shipping, it may be folded compactly to fit in the packaging material, so please understand.