It's plump because it's made by layering and sandwiching batting! Puffy Thunder-chan type ♪︎ One-sided patchwork Size Length 12cm (including the zipper) Width 14.5cm (at the longest part) *There may be size variations. Uses a 12cm zipper This is a handmade item by an amateur, so it's not perfect. Please read the profile and only purchase if you understand handmade items. This product is a handmade item by ☆Yuki☆ using KOYANISAMCHON fabric. It is not an original KOYANISAMCHON product. The copyright of the fabric illustrations belongs to JAESUNSHOP. #KOYANISAMCHON