This neck warmer provides excellent thermal insulation. Durable, breathable and easy care. INSULA garments are soft with a light, airy material structure. The fabric has built-in air chambers which are warmed by the body heat and provide extremely effective and long-lasting thermal insulation. FEATURES: BLUESIGN approved fabric Soft stretchy comfort Warming effect #2 Extremely breathable Excellent thermal insulation properties keep the body warm and comfortable Maximum breathability that enables the release of excess heat and moisture Soft, stretchy and snug fitting garment specially developed for golfers Perfect intermediate layer under a GORE-TEX or a WINDSTOPPER jacket Easy to wash and maintain, just regular machine wash WARRANTY 1 Year Manufacturer's Warranty