By purchasing yarn from String Theory, you’re lifting up a number of small and female-owned businesses. We help women in Rwanda, who survived the genocide, educate a new generation. We help women in Uruguay find meaningful work without leaving their rural homes. We help a family in New Hampshire maintain a mill, a tradition spanning hundreds of years. We help restore the Patagonia Grasslands by encouraging sustainable farming.Every yarn we stock makes a positive impact.

Bella Coco's Crochet Stitch Card Deck
by Sarah-Jayne Fragola
Create 50 versatile crochet stitch patterns with this stylish on-the-go card deck from best-selling author and YouTube sensation, Bella Coco (Sarah-Jayne Fragola). This gorgeous card deck is the perfect on-the-go tool for every crochet enthusiast: a deck of 50 different stitches in an elegant card format, designed to accompany you on all your crochet adventures. Wherever you crochet, you’ll have Bella Coco’s friendly and informative guidance in the palm of your hands.
The cards are organized into 2 different categories – ‘simple stitch combos’ and ‘textured stitches’.
On the front of each card
- The stitch-pattern name;
- A clear full-color photograph of a swatch made from the stitch-pattern;
- The skill level (easy, intermediate or advanced);
- Key stitch-pattern details (including multiples, and stitches required to make the pattern).
On the back of each card
- Written instructions (how to start the stitch pattern, create the pattern repeat and how to end the stitch pattern).
The cards measure 3.3 x 5.5in (8.5 x 14cm) and are enclosed in a sturdy, chic box. There are 50 cards, each with a stitch pattern, and 2 further cards which contain a guide to using the cards plus stitch and hook conversion tables. In addition, you’ll find a 16-page booklet providing all the essential knowledge you need to use your cards, plus simple instructions on the basic and special stitches that make up the stitch patterns.