Making a cozy garment for your cat is fairly simple using just a ball of yarn and a crochet hook. Any color yarn will do, and you can easily create stripes by alternating yarn colors every few rows. When completed, this sweater should slip over the top of your cat's head.
Chain 62. Before joining the ends together, wrap it around your cat's torso to make sure it is not too tight. If it is not loose enough, add six additional chains. Then join the two ends, being sure the chain isn't twisted.
Start the next row with a single crochet, then skip two chains and complete five double crochets in the next chain. Then skip two chains and single crochet. Repeat this process across the row.
Chain three and turn, then add two double crochets into the same stitch as three chains. Then repeat the pattern in Step 2 across the row. At the end, chain one and turn.
Single crochet in the same stitch as the chain. Complete five double crochets in the next single crochet and then single crochet in the center double crochet of the next shell. Repeat across the row. Chain one and turn, then single crochet across the row.
Repeat Step 2 through Step 4.
Chain three and turn, then double crochet 42 times and stop. Chain three and turn again, and add five more rows of double crochets. At the end of the final row, chain 20 and join it at the beginning of the row, being careful not to twist it.
Repeat Step 2 through Step 4 then finish off.
Make sure garment does not fit too tightly on your pet. You don't want it to impede its movement or breathing.
Consider taking the sweater off before your cat goes outside so they do not get it snagged on something and get stuck.