Godsen Men's Thermal Long John Underwear Set V Neck Tops and Bottoms Black-93% Cotton/7% Lycra//Grey-100% Cotton Water temperature does not exceed 30 , not chlorine bleaching, ironing highest temperature 110 , not dry, not wring, hang dry Two piece set of pants and long sleeve shirt V-neck Light weight and warm knit material fabric Elastic waist band and fly opening Ideal For Daily Wear and Suitable For Outdoor Sports like, Skiing, Golfing, Camping, Fishing, Mountain Climbing, Motor Cycling etc.. Also Suitable For Builders Working In Cold