Female led relationships discussion

Hi there. I’m looking for some guidance. Right now, I am using the CB6000s. They seem to fit me a little snugly, which is fine. However, they feel not quite wide enough for my frame. My reasoning comes from noticing that I leak out through the ventilation holes rather significantly. Is this considered normal?

Additionally, if anyone knows of an option that offers more width and perhaps less bulk, it would need to be made of hard medical-grade plastic rather than metal. This matters because I travel by air frequently; I cannot afford for a device issue to stop me from removing the unit unless my key holder is present.

Any suggestions?