NWT Mother The Wide Sleeve Jumper Crop Sweater Size Small. Ski you there. MOTHER reimagines the crewneck sweater with extra-long sleeves, a cropped hem and a relaxed fit. Made from a chunky alpaca blend, The Longest Run is a traditional off white, red and blue knit pattern. New with tags! Wash: The Longest Run 82% Alpaca/16% Polyamide/2% Wool Dry clean