I've had custom ear_plugs_ by a company that also produces compatible molds for etymotics IEMs. After a suitable break-in period (for which you're literally sup

I've had custom ear_plugs_ by a company that also produces compatible molds for etymotics IEMs. After a suitable break-in period (for which you're literally supplied with ear lubricant) they fit perfectly. I've never had the earplugs come out unintentionally, though they don't have cables to get snagged.