You're never too young to start wearing Grunt Style! Shop this cheerful onesie for your little one to wear while smashing bottles and keeping you busy on diaper duty. Crafted with 90% combed ring-spun cotton and 10% polyester for soft, all-day comfort. It features a tagless, itch-free design and ribbed collar that won't lose its shape. Dress your little one in the most patriotic apparel and get the This Is MY Pooping Shirt Runtsie now!

• 90% combed ring-spun cotton, 10% polyester
• Ultra comfortable and soft
• Tagless, itch-free design
• Ribbed collar that won't lose its shape
• CPSIA compliant
• Innovative 3-snap plastic closure
• Lap shoulders for easy on and off
• Machine wash cold, tumble dry low