I don't think I'd ever get another holster unless I needed a drop leg or OWB for something. I really do love it, as I said I wear mine ~10 hours a day for almost 4 years now and forget it's there half the time. I have the IWB mini. They can, but hand washed with a brush:
Are your Ventcore® holsters washable?
Yes. The materials that make up our Ventcore® holsters are all synthetic and non-moisture absorbing. You can use a mild soap (dish or laundry soap works fine) and a soft bristled brush like an old toothbrush to scrub them. Remove the fasteners and belt clips before cleaning your platform. After you rinse the holster, you can shake out most of the water, and the rest will quickly dry out. Check our holster maintenance page
here.
I should probably do that lol