This is an and wander Dyneema backpack. At 30L and 260g, it's an ultra-lightweight pack that takes advantage of Dyneema's properties. I'm a big fan of and wander, and when I heard they were releasing a Dyneema pack I bought it online without trying it on. However, it's a little small for me (I'm 180cm tall) and I haven't used it much (about 10 times in the city, never for hiking), so I'm putting it up for sale. Those over 175cm tall will likely need to extend the shoulder harness quite a bit, and may feel some discomfort while wearing it. The condition is good with no noticeable damage, but there are the characteristic wrinkles of Dyneema. Also, when I bought it, there were red and blue rubber cords attached to the shoulder harness, but I removed them because they detracted from the overall look and unfortunately, I've lost them. Here's the description from the official website: This backpack uses DSM's Dyneema Composite Fabric (formerly Cuben Fiber). Dyneema Composite Fabric, a film made by laminating Dyneema fibers with UV resin, is used in high-performance sails for racing boats. It is an ultra-lightweight material with high waterproofness and tear strength. This backpack is made with a focus on lightness, so it may be damaged, such as by developing holes, if concentrated force is applied to a single point. You can access the inside and take out your luggage through the zipper on the side of the front pocket.