Grundens’ new Solstrale Hoodie uses technologies from HeiQ—the Swiss green chemistry company that’s leading the industry in eco-friendly fabric treatments—to cool the body in soaring temperatures, and provide stain and odor protection. The polyester shirt also offers UPF 50 sun protection, and features mesh side panels. Available in six colors and in men’s sizes S through 3XL, Solstrale Hoodies cost $59.