Based on a 19th century design, the Ear Cozy Cap gives you ear-hugging comfort in any weather. Select your size and yarn weight, and the Ear Cozy Cap app calculates a custom pattern for a perfect fit. Knit it your way. Any yarn. Any size.With KnitFitter pattern apps, your current place in your custom pattern is just a tap away on your mobile device. Wherever you go, you can zoom into pattern details.Free yourself to use any yarn, in any weight, for all KnitFitter pattern apps. The KnitFitter engine automatically regauges patterns for the yarn you want to knit.Change the yarn , the size, and the options to create a new look. Make something special for everyone in your family, from baby to grandpa. Designed by a programmer and avid knitter, the KnitFitter engine generates custom knitting patterns to fit real human bodies. Tested by decades of practical knitting, KnitFitter pattern apps create classic designs to fit every member of the family.Cast on today!