Leisure Arts Baby It's Cold Outside Crochet ePattern- Your little ones will be warm and cozy and cute as can be when the weather's cold outside if you snuggle them in these his and hers sweater and cap combos. Crocheted using 4 medium weight yarn, US size F, 3.75mm and H, 5mm hook. Includes instructions. Jacket has three sizes that measure approximately 22"-24". 8 pages, PDF download.