The Y MountainLine Breathe 3L Shell Bib is a high-tech bib pant for mountaineers with a focus on low weight, ventilation, and breathability. You get the protective properties of a bib pant and the freedom of movement and compressibility of a lightweight shell pant. In other words, it's the perfect model for demanding mountain activities such as ski touring. From the waist down, these pants are made from a soft and lightweight 100% recycled polyamide outer fabric. Combined with our Bega Membrane Breathe Pro™ technology, the fabric offers superior weather protection and exceptional breathability. The upper bib section is made from a breathable softshell material and is cut low to ensure optimal air circulation. The extremely breathable, ergonomic straps offer full freedom of movement and ensure a high level of comfort even when wearing a backpack. And when it gets really warm, the full-length side zippers are a lifesaver. Four easy-grip sliders offer endless ventilation options. The sliders can also be operated effortlessly with gloves. The zippers also enable a drop-seat function. Another practical detail is the zip-off snow gaiters on the inside of the legs (saves 117 g). There is also an adjustment option on the inside of the leg cuffs, which allows the pants to be adjusted to the respective boot size. Two spacious pockets for various equipment on each thigh. The large pocket has a smaller cell phone pocket where smaller items can be stored safely. There is another small pocket in the bib area. They are all equipped with a fastening hook. If you are looking for lightweight, compressible, and reliable shell bib pants, the Y MountainLine Breathe 3L Shell Bib is just the thing!