You're all doomed! Camp Crystal Lake is open for business on Halloween. Don the Hockey Mask and grab your machete for a slashing good time! Our Friday the 13th men's Jason costume includes shirt, pants and mask. Other accessories available separately. This is an officially licensed Friday the 13th costume. Jason costume for men is made of 100% Polyester. Hand wash, Line Dry. Our Jason adult costume is available in a standard men's size.