This sweater is a standard V-neck with vertical ribs. The neckband, hem and cuffs are ribbed. The back length of a size M(38) is 26 inches. The sweater is knitted in a blended yarn of 40% New Zealand possum fur, 50% Merino wool and 10% nylon,weighing only about 11 ounces. Machine wash cold (gentle cycle), dry flat. Made in New Zealand.