We swear by the layering principle – several thin layers worn on top of each other keep you warmer than one thick garment. This way you can add or remove layers depending on temperature & activity. The sporty e.s.motion 2020 thermo stretch functional Troyer is the perfect warming layer: Light, highly elastic, pleasantly soft & warm. Whether worn under or solo, maximum flexibility, insulation and optimal moisture management provide an all-round good feeling.