If you are ordering a warm-up for a new player you can do so without knowing the player's number, we will make sure to add the correct number once it is assigned. Lightweight CCM Warm-Up Jacket: Jacket is built with great features and benefits such as a new breathable fabric that offers 4-way stretch, reduced noise friction and AER-TEC technology. Features include zippered side pockets, elasticated hem/cuffs, and a left-handed full front zipper. Sizing Guidelines: Jacket Size/Chest Circumference Youth XXS / 22" - 24" Youth XS / 24" - 25.5" Youth SM / 25.5" - 28" Youth MD / 28" - 30.5" Youth LG / 30.5"- 34" Youth XL / 34" - 36" Adult SM / 38" - 39.5" Adult MD / 39.5" - 42.5" Adult LG / 42.5"- 46.5" Adult XL / 46.5" - 51" Adult XXL / 51" - 56" Adult XXXL / 56" - 60.5" CCM Warm-Up Jacket includes the club embroidered patch and a sewn player number.