Sturdy and versatile pack optimized for classical Nordic ski touring.A sturdy and versatile pack optimized for classical Nordic ski touring. The narrow body, stability and custom winter features are the main characteristics. The contact area on the back consists of three cushions, which provides good ventilation between the bag and the body. The belt and lumbar pad design provide mobility to the legs and the least possible pressure on the muscle groups that are actively used when skiing. Trolltinden of course also works great for advanced trekking in summer.