Personalized Little Sister Penguin T-Shirt. Celebrate your love for these charming creatures with the Little Sister Penguin apparel. It's not just clothing; it's a statement of fun and individuality. Treat yourself or gift it to a fellow penguin enthusiast, and let the world see your playful side with every wear! 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.