The evolution of our go-to summer long sleeve. Featuring the lightest and most breathable DUAL SURFACE(TM) Precision Blended Wool we've ever made (100 g/m2), the River Run Hoodie handles the height of the summer sun with as much poise as it does a crisp morning start. Thanks to our proprietary precision blending process, the naturally UV protecting, thermally regulating ROCKY MOUNTAIN HIGHCOUNTRY MERINO(TM) wool provides plenty of cover for the razor thin layer of moisture wicking synthetic fibers underneath. Relaxed Fit. Made in the United States Exclusively from ROCKY MOUNTAIN HIGHCOUNTRY MERINO(TM) Wool FEATURES: DUAL SURFACE(TM) UL Precision Blended Wool Integrated Thumb Loops Relaxed Full Cover Hood Fabric Weight: 100 g/m2 Garment Weight: Men's L = 186 g (0 lb. 7 oz.)