Vintage Cardigan Sweater Red White Blue Stripe Grandpa Stretch 70s 60s

Vintage Cardigan Sweater Red White Blue Stripe Grandpa Stretch 70s 60s The tags have been removed, but this is a vintage sweater in a stretchy knit, presumably polyester. My guess is this is from the 60s or 70s based on style and fabric. No brand or size. Please see measurements in photos. I'll list as a small but please compare with an item in your own closet to help ensure fit. Very good condition with one tiny blemish near bottom, see photos.