Hot Chillys’ Clima-Tek midweight base layers for both men and women are designed for high-performance sports and any outdoor activities. They provide the ultimate high-flexibility and casual comfort. You can relax in our casual base layers or go enjoy your favorite activities while staying warm and dry. You can go conquer the mountain or simply sit back and relax in ultimate comfort. Whatever your choice is, our Clima-Tek base layers design will keep you warm and dry. Let’s embark on your next adventure in extreme style and comfort! Browse our selection of midweight base layers for men and women below and shop today!