Master The Craft Of Making Luxury Leather Goods

join our newsletter

Join our newsletter and get our free guide on How a Luxury Bag Component Is Made.

Though our cousins are from Hawaii, we hate spam and will never send it to you.

Save on Shipping

Free Shipping on orders over $100!
(US orders only)

Polyester Thread

Supersew MBT Polyester Sewing Thread for Leather

Supersew MBT Polyester Sewing Thread for Leather


A new in-bonded polyester sewing thread for hand-sewing and machine sewing leather.

Produced by 100-year-old company, Nagai Yoriito, Supersew MBT combines the features of their other products into an affordable synthetic thread that is brilliant in look, durable and comes in a wide range of colors and sizes.

Four Sizes to Fit Your Needs

We're offering these threads in four different sizes, similar to our waxed linen thread. So whether you are using 9, 7 or 12spi, there's a thread size that will work for your project. You can also mix thicknesses and not have to worry about them matching color.

Polyester Thread Sizes

Polyester Thread for Leather Size 1

253 TEX | 0.9mm

Note: most US polyester thread sizes go by TEX. e.g. 100 TEX = #100.

Polyester Thread for Leather Size 5

168 TEX | 0.6mm

Polyester Thread for Leather Size 8

100 TEX | 0.45mm

Polyester Thread for Leather Size 20

77.5 TEX | 0.3mm

Polyester Thread Sizes

100 Meter Spools
Perfect to Try

Need that perfect shade of green for a custom piece? Now you don't have to buy a big 1200 meter spool to complete just one job. We're initially offering these threads in 100 meter spools. It's a great size to try them out and quickly amass a range of colors to expand your own product offerings or personal collection.

Refine Your Search below to select your size and then choose from a large range of 70 colors.

Refine Search

Sort By: