I've been looking for a non-PU coated, 3/4-length, female-cut textile jacket that vents well for Summer, and thought I'd let you know what I found.
A BMW Santiago, which they stopped making years ago, but Max BMW's Amazon store still has some. I believe these were originally $575, and mine was $300 on Amazon. That's for the jacket shell only, though BMW does make an optional $260 Goretex liner. I did see a few closed sales on eBay for way less than $300.
The Santiago has really long sleeve vents, 2 chest, and 2 back vents. You can supposedly wear it in 100* temps and be reasonably comfortable. On the flip side, I hear it sucks as a winter jacket unless you really layer up. I decided I wanted to use a jacket made of PrimaLoft One for a liner. Primaloft is naturally water & wind resistant, is equivalent in warmth to about a 550-fill down but with less bulk, and it retains its warmth when wet, unlike down. Cabela's has their ladies' Mackenzie Range PrimaLoft jacket on sale for $60. It has 100g of PrimaLoft One insulation.
Fit notes for both items: I'm a size 8 with fairly wide shoulders. 36A or sometimes B if I've been eating good or it's that time of the month. Santiago: I tried sizes 38 (8) and 40 (10) in it. I liked the shoulder room the best with the 40, but the rest of the jacket was just too big. I won't be able to use as many layers with the 38, but it fit a lot better from the bust downward, so I went with that one. The 40 was going to be really big on me in the Summer without a liner. If you are busty or have even slightly fleshy upper arms, I'd recommend going up a size over your normal dress size. If you're not busty, have narrower shoulders, etc., I'd say it fits true to size. Cabela's Mackenzie Range PrimaLoft jacket: I ordered a Medium and Large and of course am exactly in between the two sizes. I'd say these run a little bit small. I went with the Large so I could wear a fleece vest underneath. The "smoke" color above is actually lighter than how it appears in the photo, and it's a beautiful jacket. It does not nip in at the waist, though, as it appears in the photo. I wish it did, and may try to put some elastic on the inside to make it do that, as I plan on wearing it a good bit as a regular jacket.
If anyone is interested, I'll come back with an update after riding with this combo. With the crazy weather we're having, our highs might be in the 40's one day and the 70's the next. I'll have to wait a bit for highs in the 100's, though.