Common materials used for pirate eye masks include PVC/plastic, polyester, paper, and latex.
There are two main coverage types: eye-only masks with openings for the eyes, and full-head masks that fully cover the wearer's head for a seamless character look.
Fit features include elastic bands, adjustable straps (common on light-up masks), and internal hook-and-loop adjustment bands used inside full-head masks or hat crowns.
Listings use age labels such as "All Ages", "Adult", and "4 Years and Up." Some items also list maximum head-size measurements, with listed maximums ranging from 7.8 inches up to 24 inches; individual listings may vary in how they report size.
Many masks have standard eye openings, but some list small eye openings that can restrict vision. Other styles offer larger openings or combined eye, nose and mouth openings for improved visibility.
LED pirate masks are described as using two AA batteries and are said to operate for more than 24 hours on that power source.
