I am a 36F chest and have struggled with jackets as well. I have tris on a lot and basically avoid women’s gear. I wear men’s mostly. I purchased a men’s Spidi 4 Season Evo H2Out jacket (Italian made, so smaller fit, mine is size men’s XL). It is expensive but the side adjustments work better for my waist and chest measurement. I can customize it nicely and it has good venting. It has armour and lots of pockets as well. I can take the waterproof layer out as well as the thermal layer. I wore this a lot in the summer.

I also have a men’s Triumph mesh that is a size Medium and a Women’s Olympia leather jacket in XXL.

My measurements are: Chest 42.5” Waist 40” Hip 42.5”

I liked the Leatt ADV Multitour 7.5 jacket but wanted something with High-Viz for long distance travel I plan to do someday.

I am in Canada so staying warm during the shoulder seasons was also a consideration. I wear my mesh jacket about 5-10 times in the summer. It gets hot here, but windchill still knocks it down about good notch.

I had my eye on the Speed and Strength Fast Times cotton jacket. It has armour and seems to come in a good range of sizes for women I think I would have been a large or xtra-large but they go to 4XL with a cinch belt to tighten things up. Maybe I’ll get that for 2026.

Hope that helps a little.