Vintage Jansport 1/2 zip Winter Ski Pullover size medium

Vintage Jansport 1/2 zip Winter Ski Pullover size medium black, pink, and teal 4 pockets- 1 large button close on the front, 1 small zip close on chest, and 2 hand zip closure elastic waistband has been cut on both sides (see pics) but doesn't seem to affect functionality, in perfect shape otherwise