Mountaineering bag general bag body slim, so through the narrow terrain, including the body is divided into two floors, in the middle with a zipper sandwich apart, so that when items are taken is very convenient. Side and top bag can be tied outside tents and mats, potentially increasing the volume of the bag is. Bike bag but also have ice ax sleeve, tied for ice ax, ski pole purposes. Most noteworthy is that the structure of the bag back, there is support inclusion of lightweight aluminum inner frame inside the bag, the shape of the back is designed according to ergonomic principles, back the bandwidth and thick, used in line with the physiological curve shape the "S" design, and there are two sides to prevent the strap to slip chest strap, so that bag would feel very comfortable. And this type of bag all have a strong, generous and comfortable belt, strap height can be adjusted.