Polar fleece Material: Polar fleece ❤️❤️ Asian size, please check theSize Chartbefore order. If you are not sure the size, please send message to us. Perfect for walking,jogging Keeps pet safe and easy to spot Durable,comfortable,warm enough,easy to wear and clean. Some customers mentioned our size runs 1 or even 2 sizes smaller. To prevent the size issue, please follow the Sizing chart in the left photo, (NOT Amazon's ). Thank you for your understanding!