Protect your lower body from the elements with Long Johns 400 which are constructed from UllfrottA Original 400 g/mA^2 circular knit material using no lengthwise seams to minimize rubbing between the body, base-layers, and outer layers. A rear gusset ensures optimal comfort and the cuffs and waist band are knitted directly into the garment to provide increased structure, strength, and support. They can be worn under a wind or water repellent outer layer. Long Johns 400 are good for colder conditions or when you don't plan to move about too much. UllfrottA Original Merino wool material 400 g/mA^2 weight Mid layer wool long John No fly Circular knit wool fabric No lengthwise seams Elastic cuffs Machine washable wool Dryer safe wool - Tumble dry low Specifications 70% Merino Wool 28% Polyester 2% Elastane