Personalized Red Friday PT Sister T-Shirt. T-Shirt - Red with dog tags says PROPERTY OF MY SISTER'S RED FRIDAY PRAYER TEAM UNTIL SHE COMES HOME. I Wear Red on Fridays for My Sister. Support our deployed troops on active duty. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.