This is a heavy gauge MAD WEAVE (turtle weave) KNIT. At first glance, it looks like a thermal cut-and-sew, but it's made from an original fabric that's as thick as a sweatshirt. I've never seen waffle material this thick before. When you wear it, it feels almost like a knit sweater or a sweatshirt. It's stretchy and comfortable to wear, and the fabric is tightly woven, so it's also very warm. You might not be able to tell from the photos, but you'll be convinced when you wear it! I think it will be useful under a tight outer. Color: OFF WHITE Size: 1 (S) Length: 58cm Width: 50cm Sleeve Length: 53cm *Please note that these are amateur measurements taken with the garment laid flat, so there may be some errors. As you can see from the tag in the photo, it has been worn to some extent, but the fabric is sturdy, so you can wear it without any problems.