"Blair" turtleneck cotton collarRib knitted turtleneck cotton collar lined with Iontex. The soft and comfortable collar keeps the neck, chest and shoulders comfortably warm without the bulk of a full sweater. Convenient to wear under other clothing or outerwear. Our textile technology may offer a therapeutic effect by promoting blood flow in the neck, upper chest and upper spine. The warmth of the knit together with the reflected infrared energy can help to keep muscles supple and