THCD everyday for inspiration?

[MacLowlife]

David, has good advice above. You could even wear a linen or cotton waistcoat with little additional warmth. I have seen some in a nice herringbone that almost appear as a tweed.

Here was a waistcoat I got on clearance that is a linen cotton mix, IIRC, and is a nice herringbone. It is lightweight and cool. Pardon some of the other fashion sense in the image... I have progressed a bit in THCD since this photo was taken.

Isaac, I am afraid your idea of "really hot" differs from that of David Pope and me... Unless it reaches 95 with 90% humidity in your neighborhood. Adding a waistcoat is only going to be an option if it has ice cubes in the pockets

[IsaacW]

95 (and warmer) with 90+% humidity is certainly a reality in WI. That said, we are lucky that it only happens a few weeks a year, unlike SC and LA. For reenactment purposes, I have marched in these temps with woolen garments (foot to neck). Not fun but doable. Heck, historically, look at what they wore in the American South... plenty of vests and jackets can be seen depending on the period and social norms for dress. Anyway, a shirt without is fine etc. I was just saying this is a potential option that adds a level of smartness and wouldn't necessarily add a lot of heat if of a lighter fabric and even only partially lined.

[Kiltboy]

My usual summer wear is a 4 yrd box pleat wool kilt (it's cooler), short sleeve dress shirt or even a polo style shirt. Thinner socks (not wool) help a lot.