French workwear company Vetra is sold by John Simons and I have seen it at some USA Ivy related menswear sites.
It fits in the slack jacket space along with J. Keydge and was not designed for traditional Ivy tastes but thoughts welcome thoughts to generate some site chat.
I do like that Postman jacket... Yet another item I can see a die-hard Ivy guy picking up abroad in Europe back in the '50s and wearing to impress the girls back in Ann Arbor... Or an older type wearing by the pool...
Thee Captain likes a bit of Vetra