Force Pro Officiating Mens Referee Jersey | 100% Polyester Size 60. Force Pro-Style Officiating jerseys are manufactured for top-level officials and the unique demands placed upon their equipment. Scotchgard™ fabric protector with moisture management Proprietary 100% polyester knit Double-stitched seams USA Hockey ap... - Force Pro Officiating Mens Referee Jersey | 100% Polyester Size 60.