Review: Hoo-Rag Sub Zero and Polartek Head Wrapsby Derek HansenJanuary 19, 2017 I’m a big fan of head wraps of all sorts, and having tested the Hoo-Rag brand before, I was happy to take a closer look at two new products they released for cold-weather wear: the Sub Zero and the Polartek. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.