Thank you for your interest! This is #Petit Bateau #petitbateru The very popular heart romper. It's long-sleeved with a tricolor pattern. I imported these from overseas to dress my sons in matching outfits. - 12 months 74cm - 18 months 81cm They are slightly slimmer and larger than the items sold in Japan. The measurements when laid flat and the condition of each are as follows: ※ Both are larger in total length than the official Japanese version! 12m 74cm → Total length 51cm / Width 23.5cm / Sleeve length 21.3cm → Slight stain on the chest 18m 81cm → Total length 57cm / Width 26cm / Sleeve length 24.3cm → Also has a stain on the chest & the collar is slightly stretched. The collar may stretch when worn. All sizes are sold out online in Japan. ※ Reference price: 6,050 yen It feels good to the touch and seems comfortable as pajamas. It's thinner than I expected, so please adjust with a sleep sack or similar during the colder months. The back has an elastic waistband, and it's very easy to put on without snaps by putting it on over the head first, then the arms, and then the lower body. Purchased from an authorized European retailer. I believe the design and quality are the same as those sold in Japan, but I personally feel that the inspection standards tend to be more lenient. I would appreciate it if you could purchase it with your understanding. I am also selling separate pajama types. Matching outfits for siblings are also possible. Quoted from the following site: - Material Features - 1x1 rib knit material, characterized by a soft touch called "second skin" and made with environmentally friendly organic cotton. - Design Features - Tricolor heart print / Botanical and animal print These are long-sleeved pajamas featuring the popular heart print / botanical and animal print. The material uses 1x1 rib knit organic cotton, which is so comfortable it's called the second skin. The sleeves and hem are ribbed, so they won't easily come undone and are safe for sleeping. It's a recommended item for a comfortable sleep. Material 100% cotton #Petit Bateau #Petit Bateau Heart #Petit Bateau Heart Pajamas #Petit Bateau Tricolor #Petit Bateau Pajamas #Petit Bateau Heart Romper #Heart Romper