Here is a wonderful long sleeve sweater by Jantzen. Feels like it could be a wool blend, and made in the USA. Classic gray sweater with red initials embroidered on the front. Fairly light weight, but warm, soft and comfy, and in amazing condition with tons of life left! The tag says Large, but here are the measurements taken laying flat (please refer to the last pic to see how I measure sweaters)

Chest (armpit to armpit) 19"

Sleeve 23"

Length 22"

This item is sold from a vintage boutique in Roanoke, VA.