Hand knit wool dog sweater made in 8 sizes to fit every do Beautiful navy and cream striped classic pattern make this soft alpaca sweater a best seller! This pattern looks great on both male and female dogs! Chilly Dog wool and alpaca dog sweaters are the warmest because the the natural fibers have greater bulk which prevents air pockets . Our dog sweaters are hand knit by Artisan Knitters in Northern Highlands of South America, they are made following Fair Trade Guideline.