joe's usa(tm) - men's interlock knit mock turtleneck , white, x-large / 44-46 joe's usa joe's usa - men's interlock knit mock turtlenecks in sizes xs-6xl. this essential is perfect for layering and extra warmth. our mock is crafted from super-soft cotton and has a touch of spandex for stretch and shape retention. . printed with joe's usa logo inside