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Specialty thread
WonderFil
Specialty threads for every technique, from thick 12wt cotton to 100wt polyester that disappears into your fabric.
Shop WonderFil by line
Each WonderFil line is made for one job. Here is what each one does.
12wt Egyptian cottonSpagetti
Thick cotton for big-stitch quilting, decorative stitching and topstitching.
Shop Spagetti → 50wt variegated cottonTuttiVariegated cotton that changes color along the thread, double-gassed for very low lint.
Shop Tutti → 40wt cotton-wrapped polyesterUltimaPolyester strength with a cotton look, for machine quilting.
Shop Ultima → 100wt polyesterInvisaFilSo fine it virtually disappears. For appliqué, stitch-in-the-ditch and delicate detail.
Shop InvisaFil → 80wt polyesterDecoBobMatte, fine thread for flat piecing seams and bobbins. Also comes as prewound bobbins.
Shop DecoBob →Wonderfil
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Spagetti Solid 12wt Cotton Thread 400m Chartreuse
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Looking for a bold and dramatic thread that wants to show off? Spagetti is a 12wt Egyptian cotton thread that has been double-gassed and is free of...
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Wonderfil Iron n Fuse Thread-40wt 183m 5ct
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Wonderfil Iron n Fuse Thread-40wt 183m 5ct
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SoftLoc-50 Pine
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SoftLoc-50 Pine
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Spagetti Solid 12wt Cotton Thread 400m Light Spring Green
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Spagetti Solid 12wt Cotton Thread 400m Light Spring Green
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Spagetti Solid 12wt Cotton Thread 400m Marigold
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Looking for a bold and dramatic thread that wants to show off? Spagetti is a 12wt Egyptian cotton thread that has been double-gassed and is free of...
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DecoBob Prewound Bobbins Class 15 12ct Dove Grey
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WonderFil pre-wound bobbins are wound with our 80wt DecoBob thread in a reusable plastic bobbin, which means there is no glue or wax holding it tog...
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DecoBob Prewound Bobbins Class 15 12ct Black
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WonderFil pre-wound bobbins are wound with our 80wt DecoBob thread in a reusable plastic bobbin, which means there is no glue or wax holding it tog...
View full details
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DecoBob Prewound Bobbins Class 15 12ct Charcoal
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WonderFil pre-wound bobbins are wound with our 80wt DecoBob thread in a reusable plastic bobbin, which means there is no glue or wax holding it tog...
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Spagetti Solid 12wt Cotton Thread 400m Soft Red
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Spagetti Solid 12wt Cotton Thread 400m Soft Red
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Spagetti Solid 12wt Cotton Thread 400m Dusty Pink
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Spagetti Solid 12wt Cotton Thread 400m Dusty Pink
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Wonderfil Rinse n Gone Thread-40wt 183m 5ct
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Wonderfil Rinse n Gone Thread-40wt 183m 5ct
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SoftLoc-45 Palm Leaf
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SoftLoc-45 Palm Leaf
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SoftLoc-55 Slate
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SoftLoc-55 Slate
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SoftLoc-66 Royal Blue
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SoftLoc-66 Royal Blue
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InvisaFil Longarm 10000yd Sky Gray-718
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718 - InvisaFil Longarm 10000yd, Winet Sky Grey
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DecoBob Prewound Bobbins Class 15 12ct Taupe
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WonderFil pre-wound bobbins are wound with our 80wt DecoBob thread in a reusable plastic bobbin, which means there is no glue or wax holding it tog...
View full details
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Tutti Variegated 50wt Cotton Thread 2286m Citrus
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Tutti is a 50wt, 3-ply Egyptian cotton thread, double-gassed and mercerized to create a wonderfully soft, clean, and lustrous finish. Free of waxes...
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Tutti Variegated 50wt Cotton Thread 2286m Bumblebee
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Tutti is a 50wt, 3-ply Egyptian cotton thread, double-gassed and mercerized to create a wonderfully soft, clean, and lustrous finish. Free of waxes...
View full details
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Tutti Variegated 50wt Cotton Thread 2286m Clay
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Tutti is a 50wt, 3-ply Egyptian cotton thread, double-gassed and mercerized to create a wonderfully soft, clean, and lustrous finish. Free of waxes...
View full details
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Tutti Variegated 50wt Cotton Thread 2286m Rock
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Tutti is a 50wt, 3-ply Egyptian cotton thread, double-gassed and mercerized to create a wonderfully soft, clean, and lustrous finish. Free of waxes...
View full details
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Ultima Cotton Wrapped Polyester 40wt 2743m Cypress
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Pale Green
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Rich Gold
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
View full details
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Ultima Cotton Wrapped Polyester 40wt 2743m Emerald Green
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Dark Green
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Medium Brown
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Light Brown
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Moss Green
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
View full details
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Ultima Cotton Wrapped Polyester 40wt 2743m Dark Copper
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Ever Green
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Aqua Blue
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Saddle Brown
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
View full details
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Ultima Cotton Wrapped Polyester 40wt 2743m Goldenrod
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Royal Blue
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
View full details
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Ultima Cotton Wrapped Polyester 40wt 2743m Canopy
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Ultima Cotton Wrapped Polyester 40wt 2743m Chestnut
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This incredible premium thread line has the strength and utility of a polyester thread and the easy stitch and finish of a cotton. Ultima™ is desig...
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Why we stock WonderFil
WonderFil makes dozens of thread lines, each designed for a specific technique, in cotton, polyester, rayon, metallic and wool.
The fine lines are favorites for precision work: DecoBob 80wt keeps piecing seams flat, and InvisaFil 100wt is so fine it virtually disappears for appliqué and stitch-in-the-ditch. At the other end, Spagetti 12wt cotton is made to be seen, for bold big-stitch quilting and decorative stitching.
WonderFil's cotton lines like Tutti are double-gassed, a process that burns off surface fuzz and removes up to 99% of lint, so you get smoother stitches and less cleaning under the bobbin.
Good to know
- Spagetti: 12wt Egyptian cotton
- Tutti: 50wt variegated cotton, double-gassed for low lint
- Ultima: 40wt cotton-wrapped polyester
- InvisaFil: 100wt polyester, nearly invisible
- DecoBob: 80wt matte polyester, also as prewound bobbins
Questions we hear
What is the difference between DecoBob and InvisaFil?
Both are fine polyester. DecoBob is 80wt with a matte finish, best for piecing and bobbins. InvisaFil is finer at 100wt with a silky finish that virtually disappears, best for appliqué and stitch-in-the-ditch.
Which WonderFil is best for piecing?
DecoBob 80wt. It is so fine that seams stay flat and blocks stay accurate.
Will cotton thread fill my machine with lint?
WonderFil cottons like Tutti are double-gassed to remove up to 99% of lint, so far less builds up in your bobbin area.
What is Spagetti thread for?
Spagetti is a thick 12wt cotton for stitches you want people to see: big-stitch quilting, decorative stitching and topstitching.