Vtg Caribbean Dress American Biker Righteous Ruler Screen Print XL BLACK T-Shirt READ 
The Biker-Eagle screen print is Mfg By Thunder Sportswear Inc... it was heat press transferred by a friend of mine who was getting out of the flea market business.  I purchased many of his prints to re-sell for myself.  They have been out in the elements over the years and do show signs of sun fading on the shoulder areas...the body area is bright and vivid Black in color though...not discolored or faded.  I stopped taking the clothing items to flea markets back in 2005 when I opened up a stick-and-brick resale store.  They have been in my house garage for many years until now ... cleaning out my inventory to repack for this year's shows.  Found this and find it interesting enough to still sell
Measures
23 inches from the armpit to the armpit area
30 inches in length from the back collar area to the bottom of the hemline
8 inches to the sleeve length