Experience superior comfort and performance with Clima-Tek. This innovative fabric is made with a blend of polyester and spandex, designed to feel buttery soft like cotton, yet provide all the benefits of performance material. Stay warm and dry with Hot Chillys men's Clima-Tek Bottom. It's breathable and moisture-wicking, so you can stay focused on your activity without distractions. Gear up for cooler weather and outdoor adventures with the Men's Clima-Tek Bottom.Clima-Tek fabric is breathable, moisture-wicking, and quick-drying for improved comfort and performance, while its four-way stretch allows for a greater range of motion.