Oh my goodness, this Thing 1 and Thing 2 onesie is absolutely adorable for your little one! Made from super-soft 100% polyester velour, it's comfortable enough for your baby to wear for hours without getting fussy. The bright red color is instantly recognizable from the classic Dr. Seuss book, and the circular patch on the front has the embroidered word 'THING' to complete the look. The best part? You get interchangeable felt numbers 1 and 2 with hook-and-loop fasteners, so you can decide whether your little one is Thing 1 or Thing 2 - or switch between them if you have twins! The blue faux fur wig headpiece finishes the costume perfectly, creating that iconic Thing appearance. The snaps along the inseams make dressing so much easier - you can pull it on over the head like a shirt without struggling. Whether it's for Halloween, a Dr. Seuss-themed birthday party, book character day at school, or just some cute photos, this costume delivers that perfect blend of comfort and recognizability that makes for happy babies and adorable pictures. At 18/24 months size, it's perfect for most infants and young toddlers. It's one of those classic character costumes that never goes out of style and always brings smiles to everyone who sees it!