While players usually only have an ice time of up to 20 minutes per match, referees and line judges have to stay on the ice for the entire duration of the game. The shoelaces get about 3 times as much moisture as a result. Howies has developed laces with a perfect wax coating especially for referees. The color is also classic white with no other color patterns. The referee laces are ideal for hockey officials who prefer laces with a wax coating.