Man wearing Hot Chillys Micro Elite Chamois Zip T with snow in the background

Base Layers for Men

This collection of Hot Chillys men's thermal base layers offers lightweight, midweight, and mountain weight base layer and accessories for all of life's outdoor pursuits. Our men's  base layers are available in a body fit athletic design with 4-way stretch for a full range of movement or relaxed fit that lies gently on the skin without binding.


    Engineered with performance in mind, Hot Chillys will keep you dry, warm, and very comfortable, so you can concentrate on having a good time outdoors. With Hot Chillys, you can conquer the coldest temperatures while still enjoying your time outdoors.

    We aren't out to change the world, we just want to change your underwear.