I've never had a dog who needed to wear a sweater, so I had never consider getting one until this year. Over the summer, my Pembroke Welsh Corgi, Daxter, had such awful allergies, he had to be shaved in order to apply topical medication to his skin. Several months later, his skin has cleared up, but his hair remains fairly short, with little, to no, undercoat. For the first time ever, my boy couldn't handle the cold and would shiver even just laying on a cool concrete floor. So I decided to give the ReKnitz a try....what a worthwhile purchase!!! My boy LOVES his sweater! He struts around thinking he's the coolest guy around. Thanks for making a great product that can withstand the cold Colorado climate, and make a cool Corgi even cooler (so to speak).