Vintage Long Sleeve Acrylic Sweater by Steep Slopes

Here is a super cool vintage sweater from the 70s/80s by Steep Slopes. It's 100% acrylic. Dark blue shirt with red and white striping. It's fairly light weight, soft and comfy. It's in amazing condition with years of life left! The tag says Medium, but here are the measurements taken laying flat. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 20"
Sleeve 25"
Length 25"