Base Layer Great to be Wear Alone at Home or Add an Extra Layer of Warmth Under Your Clothes;They can be worn as comfy pajamas on cold, chilly nights. Cold weather mens thermal gear for active sports like hiking bike morcycle cycling snowboard skiing or military & tactical games or hunting and fishing. long underwear Men with high skin friendly fabric in nice thickness, whether you are running, skiing, biking, hunting and camping or at home,at work, men thermals top and bottom set let you move freely in all winter activities. men winter thermal top & bottom are designed with four way stretch fabric that allows you to keep your body looking slimmer and to enjoy a great freedom of movement while at the gym, office or home.Flatlock stitching creates a flat seam to the garment to ensure maximum comfort. Free To Move: Our thermal underwear for men made from stretch fabric, providing you flexibility and freedom of movement. You won't feel any restriction of movement with it. Its strong fabric and seams also ensure it won't tear in any activities. All Occasions ：This thermal underwear for men for cold weather is the ideal gear for all kinds of activities, such as training, running, squat, weight training, cycling, yoga, soccer, skiing, snowboarding, indoor gym exercise, fitness body training.