Organic cotton baby clothes make up much of this Imps & Elfs collection. Start with the striped bodysuit or wrapover top, both listed as 100% organic cotton. Add organic cotton joggers or a knit cardigan for cooler days. Sizes run from newborn to 12 months across the clothing styles, with different options by color. Not every piece here is labeled organic, so check the fabric details on the item you choose. For fit, leave room for a diaper under the joggers and check the waist against a pair your baby wears now. You'll also find matching baby hats.