Domet Core Fabric - 1 Sheet For medium to medium-heavy weight materials, HCT-684 Size: 100 x 100cm Thickness: Approximately 3mm (approximately 1mm when compressed) Material: 100% Polyester Made in Japan *To reduce shipping costs, the item will be removed from its original packaging and placed in a separate transparent bag. The product itself is unused, but since it will be opened and handled, it is not a completely "new" item. Please understand this before purchasing. This is a Domet core fabric that I personally used and recommend for its cost-effectiveness. It's the perfect thickness for making baby bibs and has been very useful. I am closing my handmade business and no longer need it, so I am offering it for sale. According to the original description, the thickness is about 3mm, but I measured the thickness with 5 layers and it was about 2cm (about 4mm per sheet). When compressed, 5 layers are 5mm (about 1mm per sheet). This is a single sheet listing, but you can also purchase multiple sheets. Please comment if you would like to purchase more than one! Domet Core Fabric - 1 Sheet, Patchwork, For medium to medium-heavy weight materials, HCT-684, Quilt Batting