Personalized 2nd Birthday Monkey T-Shirt. Our 2nd birthday monkey design apparel and gifts are made with high-quality materials to ensure comfort and durability for your little one. The playful monkey designs are perfect for capturing the fun and energy of a two-year-old, making them the ideal choice for birthday celebrations and everyday 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.