Featuring premium comfort in a basic T-shirt, the Smartwool Perfect Crew Short-Sleeve T-Shirt is one of our favorite basic tees to throw on for nearly any occasion. The Merino wool and organic cotton blend is super soft, temperature-regulating, moisture-wicking, and odor-resistant to keep us comfortable all day long. A ribbed collar, set-in sleeves and a stepped hem at the side seams all aid in improving our comfort, and UPF40+ sun protection keeps us out in the sun for longer.