Personalized Mother Of The Groom Blue Wedding Bridal Party T-Shirt. Honor the Mother of the Groom with this special blue butterfly wedding T-Shirt - Black gift. Perfect to give her as a keepsake of the big day, or at the bridal shower or rehearsal dinner. 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.