Here is a sweet long sleeve sweater by Kate Collins. Feels like some kind of poly or acrylic blend, and made in the USA. Subtle pink knit fabric. Nothing fancy going on here. Just a classic good looker! I'd call it the lighter side of medium weight. It's in amazing shape with tons of life left! Here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 23"
Shoulder to end of sleeve (including cuff) 22"
Length 23"

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