Experience unrestricted dynamic movement with the 4-way stretch design that doesn't compromise on thermal efficiency. Polygene treatment keeps odours at bay, making it perfect for multi-day use in extreme environments.Part of the best-selling Dart base layer range for superior performanceRecycled Apex Thermo Eco fabric High wicking ability to move moisture away from the body 4-way stretch for unrestricted dynamic movement Polygene treatment for essential odour control Ideal for high-alpine, expedition, ski touring, mountaineering, and sub-zero environments Fabrics: 88% Polyester (recycled), 12% Elastane