I used a Comfort Tac belly band holster for my 60 with 3" barrel. It fit well & with the retention strap, it was very secure. As others have said, they can be difficult to fit, depending on your body shape. I used mine when it was still cool, but I can see how they would be really hot during the summer months. I found it to be much slower to draw from & as was mentioned above, almost impossible to reholster unless you remove the belly band first.
I didn't use it a lot, as my regular mode of carry (IWB) on my belt has none of those draw backs. I only used it when my wardrobe didn't lend itself to belt carry. It's more difficult for us women to find pants with sturdy belt loops.
However, I can't recommend the Comfort Tac. After 2-3 months of occasional use, the velcro wore out & would not stay fastened when my weapon was holstered. I checked & rechecked the velcro - it wasn't clogged or worn. The Comfort Tac would no longer support the weight of the gun.