Reddit mentions of Merona Men's Crew Neck Donegal Sweater Light Heather Grey (Small)

Okay. So. I've actually been looking into this today, and I'm not sure ive figured out exactly what brand it is, but I think ive at least got a few pretty good options.

Sweater:
https://www.amazon.com/dp/B01M3VK210/ref=cm_sw_r_cp_apa_LhlgybE564JQG
http://m.jcpenney.com/st-johns-bay-long-sleeve-solid-crewneck-sweater/prod.jump?ppId=pp5007980046&Ntt=&Ns=featured&N=&page=1

I think that the jc penny one might actually be the sweater he wears. But who knows.

As far as the jeans, I have no idea how you'd figure out exactly what brand they are. They're so generic and he's been wearing them for the past 8 years, honestly.

And bonus, Amazon recommended me the dinosaur shirt he's wearing in his two most recent Instagram posts, so enjoy:
Ragstock Men's Casual Button-Up Icon-Printed Woven Shirts https://www.amazon.com/dp/B01KP2MOZQ/ref=cm_sw_r_cp_apa_yllgybHZD2AX8

Hope you still care about finding it out, lol.

EDIT: fixed the jc penny link