Reebok San Francisco 49ers Michael Crabtree Youth Premier Jersey Body: 100% polyester premier mesh Sleeve/Yoke: 100% 5 oz polyester premier dazzle Collar: 100% polyester flat knit ribStripe-Knit Inserts (select teams): 100% polyester engineered stripe knit inserts All numbers and letters feature a sewn on, single-layer printed tackle twill The front and back body is a newly-developed diagonal pattern 2-tone flat tricot mesh The sleeves/side panel insert/yoke area is a dull dazzle tricot Team name and player's number displayed at the chest Player's name shown at the upper back on a sewn down nameplate with his number at the center Player's number featured on both shoulders