The Alto Half Zip is a versatile midlayer built from Woolly Treemerino™, a Swedish-made fabric combining 60% merino wool and 40% Tencel® Lyocell for a soft, stretchy, and naturally warm feel. Merino provides reliable insulation and odor resistance, while Tencel adds structure and enhanced moisture transmission, making it well-suited for layering on ski tours, autumn hikes, or cool post-surf sessions. The relaxed fit works equally well as a standalone piece or under a shell jacket. Made from renewable, biodegradable, and recyclable fibers, the garment is designed with end-of-life in mind.
