Developed over 3,000 miles on the Continental Divide Trail & tested in the Alps, This Merino Sun Hoody is engineered to elevate your outdoor experience and be the pinnacle of natural ultralight sun protection. We’ve teamed up with Zpacks to create an expertly designed, ultra-comfortable, and lightweight sun hoody that provides superior sun protection, breathability, and advanced moisture management, ensuring you stay cool even during the most intense outdoor activities. Features Our Merino Wool Blend is soft and smooth against the skin with no itchiness or transparency. The ultralight 135 gsm material is very breathable, but still thick enough to provide miles of durability on or off trail. Quarter length zipper allows you to regulate your body's temperature. Hood provides protection from the sun while still allowing for air flow. Integrated thumb holes The sleeves provide excellent range of motion while eliminating a top shoulder seam that could rub against your backpack straps. A gentle drop tail shape on the rear of the hoody helps provide coverage when riding a bike or reaching above your head. Sizes are US Men's, however the athletic fit and stretchy material work well for women's figures as well. The material is stretchy, allowing it to comfortably conform to your body's movements. Wool stays warm when wet and also helps with temperature regulation in warm weather. Moisture wicking and breathable material provides superior thermoregulation in a variety of temperature ranges. Materials 135 gsm (3.98 oz/sqyd) Merino Wool Blend (96% Merino Wool / 4% Spandex Blend) Because it's a natural fabric, you may experience some pilling after washing. Specs UPF 40+ Naturally Antimicrobial Weight Small: 6.9oz / 195g Medium: 8.2oz / 232g Large: 8.3oz / 234g X-Large: 8.3oz / 236g XX-Large: 8.4oz / 237g Care Our wool fabric is pre-shrunk, however it will lose a small amount of length and girth if washed and dried with regular laundry. Hand wash or machine wash cold and line dry if you wish to preserve the initial sizing. Sizing