This knit has a light, airy material, so you can wear it even in the summer. The white collar is not removable. The buttons on the back are also cute. The hem is also cute. The sleeves are frilly. Shoulder width: 31 cm Length: 47 cm Width: 35 cm Color: Black系 (Black-based) Material: Acrylic/Rayon (Synthetic fiber) Season: Spring/Summer Stains, tears, odors, etc.: None