"class friends" is correct and usable in written English.
It is used to refer to friends who are in the same class or school group. For example, "I'm still in touch with some of my class friends from high school."
I have many middle class friends and comrades whom I adore, this post certainly isn't directed at everyone.
Class affiliation has enriched their lives; they will always have Cornell in common with class friends and with each other.
If you are alive, you've got the breath of life … produce!" Thoughtful, upper-middle class friends of mine are unhappy about the trend.
Also, because I want to be as constructive as possible, at the end of the post I've listed some of the character traits of middle class friends and organisers who don't drive me up the wall.
On any given day, I see colleagues … engaged in deep conversation; students sitting in circles on the floor and on benches, debating the finer points of their last class; friends, meeting in line at the café.
A popular Fairfax County teacher who committed suicide over the holiday weekend believed that school officials were about to find him guilty of sexual harassment because of a remark he made to a girl during a math class, friends and family members said yesterday.
Last fall, I read Tracy Chevalier's absorbing historical novel Remarkable Creatures -- which stars a young fossil hunter in 19th-century England and her middle-aged, "higher class" friend.
Middle-class friends face new dilemmas.
He summons his new working-class friends to headquarters one by one to disclose his identity.
It's her "white liberal middle-class friends" who have waltzed off with the smelling salts.
For my mum's aspirational, middle-class friends, looking good was a hobby, like fishing or football.
