#html-body [data-pb-style=VJIMTW9]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}Wool is often thought of as itchy and scratchy, but the ultra-fine fibers used in the Evolution series is quite the opposite. The incredibly soft fibers are not only highly technical, but feel great against your skin, too. The 100% natural merino wool offers the highest level of moisture expulsion, thermo-regulation, and odor elimination. Measured at 17.5-micron, (microns = one millionth of a meter!) this Merino is exceptionally soft and comfortable next to skin, while remaining resistant to burring and over-stretching. The Evolution Merino 150 keeps you cool and dry in the heat, warm and comfortable in the cold, so you can stay confident and focused on success. Merino isn't just designed for extremists. Anyone who needs a base layer can benefit from wearing Merino! Also works great as a stand-alone shirt in warmer weather. 3001170 Small 3001270 Medium 3001370 Large 3001470 XL 3001570 XXL 3001670 XXXL Since 1964, the Woolmark certification logo has been applied to more than five billion products. Woolmark tests material to ensure it's of the highest quality possible and examines a garment's ingredients, color, and laundry durability. Items with the Woolmark logo offer assurance to both manufacturers and customers alike, demonstrating that the material is authentic, durable, and functional.