All-Star Adult System 7 16.5" Pro Chest Protector The new System Seven chest protector incorporates never before seen technologies to produce the best tested results. All-Star keeps the U-Bar design which helps square up and conform to the catcher's body. All-Star incorporates patent pending wedged shape abs to deflect balls downward. Low rebound foam and a Delta Flex harness are also incorporated. The CP30PRO is the most advanced Chest protector on the market.