Ultra Warm Arctic ProWikMax™Mock Turtleneck Thermal Shirt 663MLWBUltra Warm Arctic ProWikMax Mock Turtleneck Thermal Shirt 663MLWB Warm, stylish. Perfect alone or for layering on very cold days. WSI provides you with comfortable and American made clothing that is both durable and flattering. Our superior fabric technology helps to enhance athletic performance. This item is a Minnovation (Minnesota Innovation) for the nation! Product Features: Will keep you warm even in temperatures from 10 to 50 degrees Body mapped