Item Description Optimum Comfort and Wearability Design incorporating Heat Trap Technology Brushed Technology for better Cold Resistance than normal Long Johns 50% Cotton, 50% Polyester material used with 0.45 tog for Extra Warmth and Comfort Soft Ribbed Fabric used for Comfort and styling Stylish & Trendy for everyday use, for Wimter, Outdoor Work, Travel, Camping, Etc. EXtra Stretch Description Brushed Nylon inside for Warmth and Comfort Micro Air System Thermo Regulatory Effect Keeps your Body Always at the Same Temperature Suitable for Winter, Outdoor Work, Travel, Camping & Ski Wear Material: 92% Nylon, 8% Elastane Machine Washable.