The Delta Snood/bandana/neckwarmer features Galvin Greens Insula technology. Insula fabric has inbuilt air pockets that are warmed by body heat & this provides excellent & long lasting thermal insulation against the cold. It also offers superior breathability by allowing excess heat & moisture to be released away from the golfer's skin. This multi functional item is a must when the cold weather strikes. It can keep the neck, ears and/or head warm depending on the use the golfer puts it to.