*WORN ONCE* in perfect condition Color: Steel Blue 90% Merino Wool / 10% Nylon | Side: 83% Merino Wool / 17% Nylon Nuyarn Technology 17.5 micron merino wool UPF 50+ Sun Protection YKK zippers KUIU's ULTRA Merino 145 is a lightweight, incredibly comfortable, and durable blend of wool and nylon providing a next to skin or layering option for the highly active hunter. The ultra fine 17.5 micron Merino wool takes the edge off in cool conditions, while eyelet knit side panels provide maximum breathability. The Zip design adds heat release and ventilation capabilities while the stand collar adds to its comfort and concealment.