Metal Bash Bench ShirtMetal Bash Bench Shirt The Metal Bash Bench Shirt is a 2 ply revolutionary open back polyester bench shirt built for serious powerlifters chasing bigger bench numbers. Designed to provide incredible power off the bottom and support through the entire press, this shirt delivers aggressive carryover for heavy training and competition lifts. The 2 ply construction creates explosive pop off the chest while maintaining strong support through lockout. The