Cuddle duds is the most comfortable long underwear brand there is.  Unfortunately, the turtleneck variety is difficult to find and relatively speaking, very expensive compared to the crew neck and v-neck styles.  The recipient of this turtleneck was thrilled because of the way it fits...long enough in the body; comfy soft; not to hot or cold; perfect neck with no bagging yet not too tight; washes well and dries quickly.  That said, the non-turtlneck cuddle duds have the same features and are much less pricey.  I am grateful I was able to find this product on Amazon because I have never encountered a problem with shipping, or customer service.