This is an ultra rare 1998 Patagonia vintage bluegrass crocodile/alligator print. 

Made in USA synchilla snap-t pullover. Size kids 12, it also fits a women's S. 

The bottom hem is slanted and the pockets aren't perfectly symmetrical. 

Message with questions, offers welcome.

Approximate measurements:

pit to pit 19 inches flat

top of shoulder to hem 24 inches

under arm inseam 20.5 inches