My husband needed a balaclava to wear when he takes a walk in the winter.  This one fits the bill.  After he tried it a time or two, he wanted to be able to have it open completely when he would  be mid walk.  To make this happen I had to replace the zipper with a seperating zipper, doable, if you have good sewing skills.
Would recommend that the maker put in a seperating zipper, we were not able to find one made this way.