Everything You Need to Know About 80wt Thread: Spotlight on WonderFil’s DecoBob™

If you’ve been searching for the perfect 80wt thread for quilting, sewing, or embroidery, you’re in the right place. WonderFil’s DecoBob™ is a cottonized polyester thread that’s loved by quilters, sewists, and crafters worldwide. Fine, strong, and incredibly versatile, DecoBob™ combines the softness of cotton with the strength of polyester, making it ideal for projects that demand both precision and durability. Let’s dive into everything you need to know about DecoBob™, including the full range of products available in the lineup.

What Is 80wt Thread?

80wt (80 weight) thread is extremely fine and lightweight, which makes it perfect for detail-heavy projects. Because it reduces bulk, it’s a favorite for hand appliqué, English Paper Piecing (EPP), bobbin work, and invisible machine appliqué. A lighter thread also allows garments and quilts to lie flatter and look more polished.

Why Choose DecoBob™ 80wt Cottonized Polyester Thread?

DecoBob™ is not just any 80 wt thread. This 2-ply cottonized polyester thread has a textured matte finish that behaves like cotton but eliminates stretch while retaining strength.

DecoBob™ offers a soft, natural look thanks to its matte finish. Despite its fine weight, it delivers exceptional strength, making it perfect for delicate but durable projects. It reduces bulk in seams and stitching, allows for sharper miters and smoother curves, and blends beautifully into fabric for a seamless look. DecoBob™ performs perfectly both as a top thread and a bobbin thread and is available in a wide range of colors.

Made from 2-ply cottonized polyester, DecoBob™ is available in three sizes: 250m (273yd) spools, 2000m (2187yd) spools, and 6000m (6562yd) cones for longarm quilting.

DecoBob™ Products: Find the Perfect Fit for Your Project

WonderFil offers DecoBob™ in a range of convenient formats to suit every project:

1. DecoBob™ Prewound Bobbins

DecoBob™ prewound bobbins are wound without glue or wax, making them safe for your machine and providing smooth, consistent tension across every stitch. Using a finer 80wt thread minimizes bulk while ensuring strength and versatility, which is especially important for embroidery work. Pre-wounds come in 36 colors, offering plenty of options to match any project, and their matte finish helps them blend invisibly into fabric. They are available in Class 15, Size L, Size B (for Bernina machines), and Size M.

The new B-BOBBINS are specially designed for Bernina machines, holding 200 yards (183m) of 80wt DecoBob™ thread, organized conveniently in a reusable tube of five bobbins.

2. Bobbinator™

The Bobbinator™ is a handy tool that transforms your bobbin into a small spool of thread, perfect for small to medium projects without needing an extra spool. It stores up to four bobbins (one in use and three in storage) and is great for travel or hand sewing projects like English Paper Piecing and appliqué. The kit includes prewound DecoBob™ bobbins and comes in beige or grey colorways, available for L and Class 15 bobbins.

 3. DecoBob™ Starter Set

The DecoBob™ Starter Set features 36 solid colors of 80wt cottonized polyester thread, making it an ideal choice for precision piecing, embroidery, and general machine sewing. It’s a versatile addition to any sewing room and a thoughtful gift for any sewing enthusiast.

4. Violet Craft DecoBob™ Pack

WonderFil and quilt designer Violet Craft have collaborated to create a DecoBob™ pack featuring three essential neutral colors: Charcoal (DB168), Dove Grey (DB113), and Antique White (DB112). Each spool contains 2000m (2187yd) of thread, perfect for precision sewing, embroidery, and quilting.

5. Joy of Creation DecoBob™ Collection

In partnership with Veruschka Zarate of Pride and Joy Quilting, WonderFil offers the Joy of Creation DecoBob™ Collection. This premium set includes 60 new colors curated for delicate quilting, detailed foundation paper piecing, and fine embroidery work. The lightweight yet strong thread ensures smoother stitching and flatter seams for truly professional-looking quilts.

6. The Matriarch DecoBob™ Pack

The Matriarch DecoBob™ Pack, curated to complement Pride and Joy Quilting’s “The Matriarch” pattern, features 10 new colors of high-quality DecoBob™ thread. These colors work beautifully for piecing, appliqué, and intricate stitching across a wide range of projects.

7. Heart of a Lion DecoBob™ Pack

The Heart of a Lion DecoBob™ Pack includes six stunning colors curated by Pride and Joy Quilting, offering strong, durable threads perfect for precision quilting, piecing, and appliqué work.

8. Block of the Month Piecing Packs

Each year, WonderFil curates a new DecoBob™ Piecing Pack to match the theme of its Block of the Month project.

The 2023 Floral Foundation Piecing Pack features soft, blooming shades perfect for botanical designs.  

The 2024 Birdwatcher Piecing Pack uses beautiful naturals like light aqua and brown-grey.  

The 2025 Coffee Break Piecing Pack embraces cozy, coffee-inspired tones.  

Each pack includes handpicked DecoBob™ colors to minimize bulk and create strong, flat seams.

Why Quilters and Sewists Love DecoBob™

Quilters and sewists appreciate DecoBob™ for its ability to provide strong, fine stitching with minimal bulk. Whether you’re piecing intricate quilt blocks, sewing garments, or embroidering delicate details, DecoBob™ helps you achieve smoother seams, more precise curves, and a beautifully professional finish.

 Choosing the Best 80wt Thread:

For anyone serious about quilting, sewing, or embroidery, DecoBob™ 80wt cottonized polyester thread offers unmatched performance. If you want your seams to be flatter, your stitching more precise, and your projects to have a flawless finish, DecoBob™ is the thread to trust.