Abercrombie wool hooded sweater

I purchased this at a thrift shop but never wore it. It’s marked Large and I’m uncertain whether it’s a children’s large or it was shrunk, but it doesn’t fit like an adult large. Armpit to sleeve it’s 19’’, pit to pit is 17.5’’, from base of hood down back is 20.5’’. As seen in pics, it does have some minor pilling. For size reference, I’m 5’2’’, 120 lbs and it’s long in the sleeves but the rest fits me well.