Thank you for viewing! ⭐︎ It's made of a t-shirt-like fabric. ◎ White fabric x Yellow-green The neckline has elastic, so it's a type that you put on and take off over your child's head ▸◂ ⚫︎ Neck circumference: Approximately 30cm ⚫︎ Length from neck: Approximately 10cm ※ There may be some variation. ---------------------------------------- ---------------------------------------- ▶︎▷ I try to make each one carefully, but these are handmade products made as a hobby, so there may be some misalignment, distortion, asymmetry, or bending. Please refrain from purchasing if you are looking for perfection. I would appreciate it if you could understand and purchase it ☺︎ ▶︎▷ The colors may differ slightly from the photos. ▶︎▷ Chaco pen marks may remain. I use a water-erasable chaco pen. ◎ Please hand wash or use a laundry net. Shipping will be in a clear OPP bag and sent in an envelope. Thank you! ❁