T-Shirts and Thermal Underwear
T-shirts and thermal underwear form the base layer of an outfit. This layer affects comfort during movement and how well fleece and jackets work over it.
How to choose
Compare fabric content, fit, season and care instructions. Choose thermal layers for the expected activity level and temperature.
- Check the size and fit of the specific model.
- Review materials and care instructions.
- Compare specifications with your intended use.
See individual product pages for details and available options.