This is a turtleneck-style collar that keeps your neck warm! It's a convenient two-way design, functioning as both a collar and a neck warmer. It's designed to be easily attached in the coming cold season, with a wooden button closure. You can use it as a collar, wear it under clothes with open necklines as a turtleneck, or over your clothes to protect against the cold. The puff stitch allows for stretch and give. It's gentle on the neck, not tight, and provides a light and very warm feel. Please consider this item with the understanding that it is handmade. Inspired by a video from Rirakuro. Size: Neck circumference: 40cm Height: 23cm Material: 100% Polyester