Super cool vintage California Institute of Technology CALTECH sweatshirt with raglan sleeves. Made in the USA by Collegiate Pacific. Size Small with a boxy fit approximatey 20" by 20" but have a look at the measurements in the photos to ensure a proper fit for you.

The sweatshirt is structurally sound, has a small tear at one of the cuffs (see 2nd final photo) and also the graphic print is wearing off but still readable (see the photos)