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10 CENT SHIPPING ON ORDERS OVER $100
10 CENT SHIPPING ON ORDERS OVER $100

Good Yarn

Are you overwhelmed by everything going on in the world?
You've come to the right place.
At String Theory you are making the world better one stitch at a time.
Studies show that knitting and crochet improves your physical and mental wellbeing.
We love helping you find a project that restores your inner peace.
Inner peace leads to world peace. That is no small thing, but we know that you want to do more.
You want the money you spend on your passion to create the kind of world you want to live in.
So shop at String Theory. We make it simple: everything here is good for somebody, somewhere.
Your purchase makes a world of difference here.

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Knitting Everyday is Good for You!


Our Box of Light might look like an advent box
full of yarn and other goodies,
but it is really a self-care countdown to 2025.

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Hello, Hope Gift Package


With your purchase of a Hello, Hope package, you hold the power to help a Rwandan woman break the generational cycle of poverty in her family and bring her hope.

Each package contains:
🧶 500 yards of
Borocera Silk
💛 pattern suggestions
💛 6 stitch markers of hand-carved cow horn
💛 1 dumpling project bag
💛 1 wool felted gorilla ornament
☕️ Rwandan coffee from women-run farms

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Find your perfect project

We believe that there is a perfect project for every moment in your life. Meditative projects are perfect for morning ritual or an evening in front of the tv. However, sometimes you need a challenge to motivate you or practice your concentration. Big afghans can keep you cozy while knitting in the winter. Smaller projects are perfect for traveling and waiting for kids. Take a look and see what calls your name. Let us know if you have any questions.

String Theory Yarn Co.


String Theory provides a conscientiously-curated selection of yarns that make a positive difference in the world.

You’ll find a wide range of organic, fair trade and eco-friendly yarns.

READ OUR STORY →

I just finished a fingerless mitten class and it was phenomenal! Liz was patient and funny and full of helpful hints. I normally cast on by " knitting" on.. she showed me how to cast on by thumb and today I did it on my own for the first time!!!

Andrea D.

Super cute yarn shop! Nice selection of yarn, lots of visible samples, and helpful staff! You can find neat crafted accessories from cool vendors, like project bags and various supplies, too. Great shop!

Elizabeth m.

Tutorials

We know stuff. Over the years we’ve helped thousands of customers work their way out all sorts of fibery dilemmas. Every once in a while we create a post or a video with our favorite tips. Take a look. You might find an answer to a question you didn’t even think to ask

  • Tips for Successfully Substituting Yarns

    Tips for Successfully Substituting Yarns

    by Meg Dedolph
    Understanding how to substitute yarns in a project successfully is a big part of crocheting and knitting. Many times, you find a project you like and discover that the yarn it was originally created with is no longer being produced. Or it’s not friendly to your budget. Or it’s not friendly to your skin. Or you’d like to use a yarn from your stash instead. 

    While people have written entire books on how yarns are constructed and how different fibers behave - even about how different kinds of sheep’s wool behaves - there are a few basic rules we like to think about when we’re giving advice.

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  • How to pick a good free pattern

    How to pick a good free pattern

    by Meg Dedolph
    We like free patterns as much as anyone else, but not if it’s going to be a frustrating project, or if we’re going to have to rewrite the pattern ourselves to correct mistakes.

    Here are some of our favorite tips for making sure the free pattern you want to use is also going to be fun to make. 

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