Check the listing for details. 401 Chestnut - Wonderfil Invisafil 100wt Polyester Thread. Color: Chesnut 401, Condition: New. Listed at 8.99 USD. 401 Chestnut - Wonderfil Invisafil 100wt Polyester Thread class WonderFil Invisafil 100wt Polyester Thread Invisafil Thread 2-Ply 100wt Polyester Thread. Wonderfil InvisaFil is a remarkable silk-like 100wt, 2-ply cottonized polyester. This ultra-fine but surprisingly strong thread has cotton-like characteristics and negligible stretch while also feeling soft in the hand. InvisaFil makes for super low bulk stitches and virtually “disappears”, making it the ultimate choice for English paper piecing, delicate lace designs, fine fabrics, creating texture when micro quilting, or whenever you don’t want your stitching to show. Thank you for buying from “Yes I Can” inc. Our products are processed and shipped by persons with disabilities. Your purchase helps provide jobs, opportunity, pride in the workplace, and support for people who believe they can. Condition is new! Ships FREE USPS Ground Advantage 44A