Long-sleeve summer running shirts lack insulation for cooler weather, but thermal options can quickly start to feel too bulky and warm. We designed this midweight option as a slim-fitting shirt that's ideal for cool weather-either on its own or with a jacket depending on the temperature. The 3D textured material is stretchy, highly breathable, and moisture-wicking to keep you dry and comfortable. A great way to fine tune any running kit, this adaptable \u00bc-zip shirt is made with a textured midweight fabric that offers light thermal protection and reduced wet cling\u2014so it can be worn on its own or layered with a jacket for cool-weather comfort. Highly breathable stretch knit material with textured backer offers moisture wicking and light thermal insulation Partial zip construction for individual temperature regulation Versatile layering as an outer- or warm mid-layer for a wide range of temperatures Reflective details. GOREWEAR Everyday Mid 1/4 Zip Women's in Tech Beige | XS (0-2) | Regular fit | Moisture Wicking