Appropriate substitutes for Patons Inca yarn include those classified as bulky-weight and those with a similar gauge. Substitute yarns should produce a gauge of 12 to 15 stitches per inch when knitted in stockinette stitch, or a gauge of 8 to 11 stitches per inch when crocheted in single crochet.
Weight and gauge are the most important considerations when choosing a substitute yarn. These details are found on a yarn skein's tag or wrapper. Choosing a substitute yarn that has a different weight or gauge can produce a garment or other item that is much smaller or larger than intended.