Purple Woodstock Dog Sweater. Gorgeous knit hues of pink, purples, and blues! Chilly Dog Sweaters are made following Fair Trade guidelines. All sweaters are handmade & may vary slightly in color & style. 100% wool made in the Northern Highlands of South America by descendants of the Inca Indians. The Incas have handed down the craft of knitting through many generations. For 11 years, Chilly Dog has directly employed two families to knit our sweaters and practices within the guidelines of Fair Trade.