Collections Etc Nordic Dog Winter Sweater, Blue, Medium Keep your furry friend cute and comfy this winter in this beautiful Nordic-style sweater. Warm, polyester knit sweater features the classic, Nordic pattern. Machine wash, cold. Lay flat to dry. Polyester; imported. Colors available; Blue or Red. Size options; Small (back 13"-16", chest 16"-18"), Medium (back 17"-20", chest 19"-21"), Large (back 21"-24", chest 22"-24").