A list of potential substitutes, if you can
Knit Picks / We Crochet Biggo
Crochet
biggo My Tangled Yarn Knitting Adventures
Just for you - Free Patterns Featuring Biggo! - The Knit Picks Staff Knitting Blog
Crochet Chunky V-Neck Button Cardigan - Free Pattern + Video
Child Sunday Sweater
We Crochet Biggo Chunky Yarn — Stitch & Hustle
Knitting Pattern / Wicker Cardigan / Whiteowlcrochetco / Knit Picks Biggo / Fisherman's Rib / Intermediate Knitting / Bulky / Warm / Sweater
Lavender Dip Toque
Just for you - Free Patterns Featuring Biggo! - The Knit Picks Staff Knitting Blog
Crochet
Crochet Chunky V-Neck Button Cardigan - Free Pattern + Video
Crochet Chunky V-Neck Button Cardigan - Free Pattern + Video
We Crochet Biggo Chunky Yarn — Stitch & Hustle