I recently got my security deposit for my apartment back and have decided to use it for a new saddle. I am looking for a saddle which my girlfriend and I both can use while on the trainer bike, as the current saddle it too uncomfortable for her. We normally bike on the trainer for 1-2 hours. I know their may be a difference in sitbone sizes, but I am just looking for recommendations. Thanks.

You are going to have to haul your GF to the LBS and both try different saddles to see which one is the compromise choice. Fizik Aliante line 143mm wide would be a place to start?

My wife is not a triathlete but loves her Adamo Typhoon purely for feminine reasons. Want to score some points? Pick one up for her to try. $85 on ebikestop. GL

The new Bontrager saddles are nice, They are the Affinity RL, there are three levels. I got the mid one and it is padded and comfortable. Used to use a Toupe gel but my sit bones hurt all the time....

https://bontrager.com/model/08801

Charge saddles. Fantastic. Relatively cheap too. https://www.wiggle.co.uk/p/cycle/7/Ch...le/5360039127/

Check out a LBS. They should be able to tell you what kind of saddle would work best for you, and maybe let you borrow a few to try out.