Looking for an "ordinary shirt" that can keep up with all of your adventures? The year-round Merino 150 Base Layer Short Sleeve is up to the challenge. With our Core Spun technology, we've wrapped Merino around a nylon core for added durability while still keeping the comfort of ultra-soft, responsibly sourced Merino next to skin. And select colorways feature a more responsible plant-based-dye technique. Built for consistent comfort, even when wearing a pack, this shirt is ready to explore the world on your back.BenefitsMerino 150This breathable, soft, lightweight fabric offers next-to-skin comfort, moves sweat away from the body, and acts as a versatile performance layer for warmer conditions.UPF 20+Naturally protects against the sun's raysFeaturesSlim FitOur lightest weight Merino jersey fabric uses a nylon core to increase durability while still keeping 100% Merino wool next to skinOffset shoulder and side seams designed to increase comfort and minimize chafing while wearing a backpackSide seams wrap to front for body-enhancing fitFlatlock seam construction designed to minimize chafingUPF 20+Black Marble Wash, Light Woodsmoke and Indigo Blue colorways feature plant-based dye techniqueKnit in Vietnam and China: 87% Merino Wool, 13% Nylon. Exclusive of Decoration.Style: SW000744CareMachine Wash Warm Gentle Cycle.Do Not Iron Decorations.Do Not BleachDo Not Dry CleanWash With Like Colors