Stephen Amell is using his SummerSlam appearance to benefit charity. Amell has released the shirt through Represent.com; you can see the design at the link.
The description from the Arrow star reads:
Growing up, I loved my WWE shirts. The classic graphics with the date and arena… So if I’m going to risk life & limb in a WWE Ring this Sunday, we’re DEFINITELY doing something to raise money for charity.
A portion of proceeds benefit Emily’s House, a hospice for children.
You can purchase the shirt at the link provided.