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Tools to Make it Easier

Great tools make knitting and crochet even more enjoyable. At String Theory Yarn Co, our knitting tools and crochet accessories are chosen with the same care as our yarn—because the right tools make every stitch smoother, faster, and more fun.

Smart Tools for Knitters and Crocheters

Our collection includes the essentials every maker reaches for again and again: interchangeable knitting needles, circular needles, crochet hooks, stitch markers, row counters, and tapestry needles. Whether you’re casting on a sweater or finishing a pair of socks, the right knitting notions can make all the difference.

Beautiful, Well-Made Notions

We love tools that are not only practical but also a pleasure to use. That’s why our shelves feature thoughtfully designed knitting accessories, clever gadgets, and beautifully crafted notions made by small makers and trusted brands. Many are created by artisan toolmakers and women-owned businesses who share our love of craft.

Small Tools, Big Difference

From project bags that keep your knitting and crochet organized to clever yarn tools that save time and frustration, these little helpers turn good knitting days into great ones.

41 products
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Save 17%A beige canvas tote bag laid flat on a gray concrete surface, featuring a colorful vintage-style map graphic with the words 'The Great Yarn Crawl' and Route 66. Small props including keys, and a protein bar.
Sale price$25.00 Regular price$30.00
Floral-patterned tote bag with knitting needles on a wooden surface and white brick wall background
Sale price$50.00
Blockprint Tote
Sale price$65.00
Sold outCanfield Sustainable Backpack
open shipping box revealing 31 kraft paper envelopes with numbered stickers.

Box of Light 2026

31 surprises to countdown to the new year

Preorder now
Sold outLunch Bag
Sale price$20.00
(5.0)
Project 73
Re:Designed English Leather Care
Sold outSave 41%Aztec Tote
Sale price$58.00 Regular price$98.00
Sold outSquared Zipper Bag
Sale price$35.00
(5.0)
Large Tote Bag
Medium Zippered Tote
Large Zippered Pouch
Sale price$35.00
(5.0)
Canvas Zipper Pouch
Sold outSave 28%Blue Screenprinted Drawstring
Sale price$13.00 Regular price$18.00
Moorgate Messenger
Sold outTrafalgar Tote
Sale price$95.00
Person holding a patterned backpack next to a bicycle with a basket outdoors.
Sale price$115.00
Red bag with white bear face pattern on a white background
Sale price$50.00
Woman holding a red and white patterned bag by a marina
Sale price$100.00
Yellow fabric basket with yarn and knitting needles on a white background
Sale price$100.00
hands taking something out of the mini cube
Carnaby M Wrist Strap Wallet
Save 50%Halle Bucket Bag
Sale price$120.00 Regular price$240.00
Project 39
Project 9
Sale price$130.00
Peace Love Yarn Drawstring Bag
Save 26%Circular Needle Case
Sale price$52.00 Regular price$70.00
Save 25%Drawstring Project Bag
Sale priceFrom $21.00 Regular price$28.00
Sold outString Theory Oh Snap Zip
Sale price$20.00
(5.0)
Save 50%Zipper Pouch
Sale price$10.00 Regular price$20.00
Canvas Drawstring
Sale priceFrom $18.00
Mitchell Totes
Sale price$40.00
Carnaby Wallet
Sale price$35.00
(5.0)
Willesden
Sale priceFrom $76.00
Chelsea Pocket
Sale price$39.00
Sold outFinchley Backpack
Sale price$125.00
(5.0)
Bantry Sustainable Backpack - String Theory Yarn Co
Sale price$120.00
(5.0)
Paddington B Round Sustainable Crossbody
Kennington Sustainable Sling Bag
Tall Caddy
Sale priceFrom $130.00
(5.0)
Sold outHope Basket
Sale priceFrom $130.00

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