The ALTO HALF ZIP lets nature keep you warm. Made from Swedish Woolly Treemerino™—a blend of merino wool and TENCEL™ Lyocell—it offers natural warmth, stretch, and breathability.
The TENCEL™ fibers add structure and enhance moisture management, while merino wool provides insulation and odor resistance. Together they create a soft, high-performing mid-layer that’s entirely biodegradable.
Designed for versatility, this natural fleece works perfectly under a shell for skiing, on its own during autumn hikes, or as a cozy layer after a cold surf session. Don’t be fooled by its softness—this is a technical fleece built to perform.
