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Wool Yarn — Heritage Breed, Regenerative & Non-Superwash | String Theory

Wool does things no other fiber does — holds heat when wet, takes dye like a painting, and remembers the shape you give it. We carry it in many forms, from many places. You will find regeneratively raised US wool from Mitchell Wool Co, non-superwash heritage-breed wool from Wooldreamers spun from Manchega sheep in Spain — the same flocks whose milk becomes Manchego cheese — GOTS-certified organic superwash from Neighborhood Fiber Co. for socks that need to survive the laundry, and an angora wool blend from Handspun Hope, where Rwandan women earn a living wage spinning by hand. The right wool for every project.

42 products
Rambouillet Air
Sale price$36.00
Noro Akeboshi
Sale price$64.00
Prisma
Sale price$32.00
Gradient Cloud
Sale price$36.00
ChiaoGoo Interchangeable Needle Set in Tools - needles | String Theory Yarn Co

Interchangeable Needle Sets

all your needles in one place

Find the set that's right for you
Kingston
Four skeins of yarn in beige, gray, and black on a textured surface.
Plied North Ave. 18-Bobbin Set
Plied North Ave. 6-Bobbin Set
A close-up of colorful variegated yarn balls and a matching knitted fabric sample displayed in a white tray on a wooden table.
Sale price$18.00
Guaranteed Passage Kit
Sister Ananse Road Trip Fingering
Sister Ananse Road Trip DK
29 Bridges Go To Sock – Hand-Dyed Speckled & Tonal Sock Yarn
Skein of pink yarn with a label on a gray background
Legacy Worsted
Ewetopia BFF BFL
Sale price$32.00
Wooldreamers 90 Varas
Neighborhood Fiber Co Organic Studio Worsted
Gradient Infinity
Sale price$34.00
Soft Donegal Chunky
29 Bridges Bloom
Sale price$38.00
(5.0)
Doodle  Cowl Kit - Paka Washi
Ewetopia Sustainawool
Deseos DK
Sale price$28.00
(5.0)
Tussie Mussie Mittens KIT
Doug Hat KIT
Sale price$54.00
Sold outStriped Elements Scarf KIT
Paka Washi
Sale price$18.00
(5.0)
New ColorsBeartooth High Twist
Sale price$30.00
(5.0)
Gumdrop Kerchief KIT
Sale price$90.00
(5.0)
Mota - String Theory Yarn Co
Sale price$19.00
(5.0)
Tuscaloosa Hat KIT - String Theory Yarn Co
Rasta - String Theory Yarn Co
Sale price$31.00
(5.0)
Organic Studio Sock
Uneek Self-striping Worsted
Manos del Uruguay Alpaca Heather 50g
Sold outManos Alpaca Heather 100g undyed in Yarn - Sportweight | String Theory Yarn Co
Handspun Hope Angora blend
Rios - String Theory Yarn Co
Sale price$22.00
(4.8)
Blue Sky Sweater
North Ave in Yarn - Fingering | String Theory Yarn Co
Sale price$32.00
(5.0)
Chibi Paka in Yarn - ChunkyBulky | String Theory Yarn Co
Sale price$18.00
(5.0)