Features: 1. Constant Temperature at 37 degC : Made with cotton material that regulates body temperature keeping the body warm at 37 degC even during the cold season. 2. Warmer than Usual : It is 65% warmer than regular inner wear, more effective and protective. 3. Seamless : It perfectly fits the body, not bumpy; keep you looking good and feeling good. 4. Ultra Elastic : Made from soft elastic materials keeping you comfortable for free movements. 5. Perfect for Traveling : A perfect partner while traveling in cold places; lightweight, easy to wear and carry. 6. Under Your Favorite Outfits : You can wear it under your favorite outfits such as coats, long sleeves, sweatshirts, and more! Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. 2. Asian size is smaller than EU/US/UK size, please compare the detail sizes with yours before purchasing. Specification: Type: warm underwear set Fabric: Cotton Applicable age: adult Applicable gender: male Pattern: plain Thickness: General Weave: plain weave Top style: pullover Waist type: middle waist Neckline shape: round neck Size:One size Suitable weight:40-80kg Suitable height:160cm-175cm Size Chart Size: : One size Suitable weight(kg): : 40-80kg Suitable height(cm/in): : 160/63-175/68.9 includes:1 x top 1 x pants