ZANheadgear Cotton Skull Balaclava by Zanheadgear. Save 26 Off!. $11.06. This 100 per cent cotton, low profile Balaclava is non-bulky and easy to store. It has skull design. It fits snugly under helmets and is thick enough to withstand bugs, wind and other extreme weather conditions while protecting the head, ears and mouth. One size fits most.