This is a quilted knit tank top. It's a black quilted knit with a geometric pattern. It's a very soft and fluffy quilted knit. The fabric that touches the skin is 100% cotton, and the filling is 100% ester. It's quite light and warm. Size: Neck: 23cm Chest: 35cm Length: 21.5cm Front Length: 18.5cm Weight: Up to 3kg I purchased this from a handmade artist for 2500 yen, but it looked small on my 3kg dog, and it hasn't been worn. It has some stretch, but it only stretches a little. I hope someone who can purchase with some room in the size will wear it. Thank you.