Iron-on 3-layer compatible seam tape. 【Size】■ Width: Approximately 20mm ■ Length: Approximately 8m 【Color】■ Gray ■ Japanese instruction manual included. ● This 3-layer compatible seam tape is made of tricot/warp knit fabric, ideal for 3-layer materials such as Gore-Tex. ● It is thicker and has a stronger bond than regular seam tape using PU coating. 【How to Use】 1. Before application, thoroughly clean the application surface and ensure it is completely dry. 2. Use a thin cloth (handkerchief) or silicone paper (kitchen paper) as a pressing cloth over the seam tape. 3. The iron temperature should be medium heat, adjusting the temperature as needed while checking the adhesion. ※ The corners of the tape are prone to peeling, so cutting the corners of the tape into a rounded shape before application will make it less likely to peel. 【Precautions】 ※ Avoid using on polyethylene cloths such as blue sheets, as the fabric may melt due to heat. ※ Sufficient adhesion may not be achieved depending on the material. ※ There may be seams in the tape due to the winding process, please understand.