Klättermusen's Balder 2.0 Zip Jacket is an advanced technical mid-layer engineered for cold conditions. It combines a breathable fleece-blend interior with stretch and practical features for low-bulk layering under a shell. Key attributes: Gray | Grey | Wool | Breathable fabric | Thermal mid-layer warmth | Slight stretch for freedom of movement | Full-length zip | Thumb loops on cuffs | Layering-friendly construction | Turtleneck | Fleece-blend interior fabric | Dimensions & fit: Slim fit | Layering-friendly (designed to be worn under a shell) | Composition & care: 46% wool | 35% polyester | 16% nylon | 3% other fibers