Our Nordic ski racing adhesive body race numbers are manufactured using super durable Tyvek with ARN Bibtac™ Adhesive, made for the most demanding conditions. The waterproof, tear resistantand conformable Tyvek face stock, is the perfect choice for pressure sensitive racing numbers, its adhesive adheres well during the rigors of the race, but removes nicely from racers clothing without leaving any residue after passing the finish line. You can applybody numbers at -20 F or higher temperatures, and once applied it can withstand temperatures down to -32F without adhesion failure, perfect for biathlon and all winter nordic skiing racing events! The 7.5" x 9.25" race numbers have large legible numbers and are customizable, a great alternative to expensive pull overbibs and tyvekpin-on race numbers that can damage expensive ski suits.