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Purchase Organic & Sustainable Products

By choosing yarns from our Organic & Sustainable Products collection, you're not only creating beautiful handcrafted pieces but also making a positive impact on the planet. From reducing carbon footprints to supporting ethical farming practices, your purchase supports a more sustainable textile industry.

At String Theory Yarn Co., we're passionate about supporting a sustainable future for our planet. So, in addition to yarns, we have a selection of eco-friendly home goods and gifts.

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    Moonshine Bulky

    $36.00

    Experience opulence with this blend of organic silk, extra fine baby alpaca, & highland Peruvian wool. This bulky loosely spun single ply rovin...

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  • Berroco

    Ultra Alpaca Chunky

    $18.00

    Soft, earthy, undyed colors with a couple of fun marls! 50% wool/ 50% alpaca 131 yards/ 100g Pattern Suggestions Burr Hat Instance Hat Calidez Ve...

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  • Mitchell Wool

    Tunis DK

    Original Price $30.00
    Current Price $22.00

    Tunis is a heritage breed sheep that came about when North African sheep were brought to the United States from Tunisia as a gift to George Washing...

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  • Mitchell Wool

    Cormo DK

    from Original Price $30.00
    from $22.00

    Cormo wool is soft and bouncy. The Chester Brown DK, a delicious, undyed chocolate brown is part of a limited edition collection.    50g 155 mete...

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  • Mota - String Theory Yarn Co
    Mota - String Theory Yarn Co
    Wooldreamers

    Mota

    $19.00

    Mota is a lofty 3 ply, with a strong twist for durability. Because of the loft, Mota can be used in patterns that call for DK, Worsted, Aran and ma...

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  • Madelinetosh

    Woolcycle Sport

    Original Price $38.00
    Current Price $28.00

    Woolcycle Sport delivers strong stitch definition, bright colorwork, and pleasurable stitching. 100% Upcycled Superwash Wool Sport-weight | 4-ply ...

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  • Blue Sky Sweater - String Theory Yarn Co
    Blue Sky Sweater - String Theory Yarn Co
    Blue Sky Fibers

    Blue Sky Sweater

    $24.00

    Soft, family friendly and machine washable. Blue Sky Sweater (formerly known as Spud and Chloe Sweater) is versatile and the perfect blend of super...

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