Personalized Mommy's Little Cowboy T-Shirt. Show off your love for the American Western lifestyle with our Custom Mama Mini sets and Cowgirl big little outfits. Rodeo Mom Mamas and Birthday Cowboys will appreciate our unique designs that celebrate the spirit of the Wild West. 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.