Braless
Only us old guys remember this but back in the late 60s girls started the ban the bra movement, in the 70s hardly any women wore bras, not just the young ones but the older ones as well, it was great, I enjoyed looking at a girls boobs only covered by a tee shirt and as she watched you looking her nipples would get hard and pop out. I found that the older women got turned on at us looking at her tits more so than the younger girls, I was always a titty freak so I loved all this and it seemed like the older women were a lot easier to fuck then, I think they stayed a little turned on from lots of guys looking at her tits, good ole days.
Hot pants and Halter tops, my wife had a white crocheted bikini that was accented by her olive brown complexion, and jet-black hair. It also highlighted her dark brown areolas and nipples and her hairy bush that creeped out on the top and sides
Short skirts, bikini panties, bikini bathing suits with a bit of butt crack showing, never a bra! Wife and I married young in SoCal in 1967 - as an 18 yr old slim blonde she drove my buddies nuts in her short T-shirts and flowered bikini panties that she always wore around our apt. Breasts swaying under her shirt every time she moved....nipples poking....guys trying to see if she was a 'natural' blonde down there. She and her girlfriends took me to a secluded cove along the ocean - where they skimmed down to just their panties and went topless in the waves. They all laughed at my erection in my briefs! I was helpless - 19 and all these naked breasts and see-through wet panties!