Isacord 1000 公尺聚酯纖維 3620 海軍藍線

This blue is deep and rich, and the thread runs through my machine without a single snag or break—even on dense logo work. It’s noticeably stronger than the rayon I used to buy, so I’m not constantly rethreading mid-design.

I've been using this 3620 Marine Blue in my embroidery machine and the color is exactly what I needed. The polyester thread runs smoothly without breaking, and it's held up well through multiple washes on a client's jacket.

The thread itself runs smoothly, but for a 1000m spool I expected a bit more yardage for the price. It works fine for basic sewing, not sure it justifies the cost over standard polyester.