Thank you for viewing! Front: 100% Cotton Middle: Dommett core Back: Double gauze, two layers Uses plastic snap buttons. The area around the snap buttons on the back is reinforced with cotton fabric, but please attach and detach them gently. Neck circumference: Approximately 28cm From the neck to the bottom of the bib: Longest part: Approximately 8.5cm Shortest part: Approximately 7cm ⚠︎ Some stitches are very close to the edge of the fabric. ⚠︎ There is a small stain? on the back. Each item is carefully made, but due to the handmade nature of the product, there may be slight variations or distortions. We appreciate your understanding of the handmade quality. All fabrics are pre-washed before production. The actual color may differ depending on your device and environment. We recommend using a net when washing. Please refrain from using a dryer, as it may cause the fabric to shrink or become damaged. Shipping will be via Yu-Packet Post. We may be able to change to Nekopos, so please feel free to contact us. Thank you.