Any idea what overshirt this is that Seth Mcfarlane is wearing?

I've done a reverse image search on Google and lots of items this style come up, but have not been able to find a match. From other's I've seen these two seem to match what I am looking for: Oliver Sweeney Athea Navy - https://www.oliversweeney.com/products/athea-navy-shirt Price is a little more than I am looking to spend, otherwise seems to be the right fit and material I would want. Tailored Athlete Jersey Overshirt https://www.ebay.com/itm/225888852528?ssPageName=STRK%3AMEBIDX%3AIT&fromMakeTrack=true Like the style and material, but concerned about Tailored Athlete's fit for me. Seems to be "tailored" for more muscular builds, I'm 5/10 150lbs so don't want anything that's not relatively form fitting. If no ID, any other recommendations are welcome. Looking for something casual, but can be used to "dress up" a plain T shirt in a pinch.

Oliver Sweeney

Athea Navy

Shop Athea Navy on oliversweeney.com. Expert tailoring and an attention to detail add the finishing touches to our men's shirts.

eBay

Jersey Overshirt In Navy (Tailored Athlete) Size M

Introducing the Smart Jersey Overshirt, a refined take on contemporary utilitarian style. Pair with our Smart Jersey Joggers for a on-the go look, or as a standalone top layer. RRP is £80. 72% cotton, 25% polyester, 3% spandex.