The shirts are a tribute to Granger's late son.
(Undated) -- The t-shirts Granger Smith designed in memory of his late son, River, have already raised over $100,000 for Dell Children's Medical Center.
Smith and his wife, Amber, started selling their River Smith Tribute shirts last week.
One-hundred percent of proceeds go toward the hospital where River was treated following a tragic accident earlier this month.
The shirts are on sale for $21.99.