Set of two knit hats from Botanical Colors. One Blue-Indigo, one Yellow - Osage. Knit from CoPacaWoo = Cotton Alpaca Merino wool blend, this hat is soft, warm, and easy to wear. The ribbed band stretches, and the slightly slouchy fit of the overall hat looks and feels great on heads of all shapes and sizes. Cotton, alpaca, and merino wool blend together to create a lighter-weight fabric that drapes beautifully.