Originally designed for adventure racers and desert ultra-runners, the Eco-Mesh Shirt has set a new fashion and comfort standard for adventure seekers. Tens of thousands have been sold--and its popularity keeps growing among hikers, paddlers, eco-travelers, and runners. (Each fall, we receive several letters from Appalachian Trail thru-hikers who thank us for the indestructible and low-maintenance performance that the shirt delivers.) The shirt is made with super tough nylon fabric that's lightweight, wrinkle-resistant, odor-resistant, sun-blocking, and quick-drying. Side and back vents provide upper-torso ventilation and air flow. Think of this shirt as functional elegance for the outdoors; in fact, world champion adventure racer and adventure television talk show host Ian Adamson wore his Eco-Mesh Shirt at his wedding in Boulder.