Lens caps are probably one of the easiest bits of a photographer's kit to lose, so the idea of a universal cap to replace any misplaced caps is a good idea. But the Kuvrd universal lens cap takes things even further, it protects any lens in a bunch of ways your standard caps can't, by making them waterproof, shockproof, dust-proof and scratch-proof.
The Kuvrd lens cap is made from rubber and stretches back over the barrel of the lens so you can use the same cap for both the front and back of each lens. It also means that you are not just protecting the glass, you are protecting the barrel as well, which will help your lenses stay looking brand new over time.
Perhaps the biggest annoyance of all might be that you need two hands to stretch these jiggers over the lens, meaning if you're not wearing a strap, you'll have to put the camera down to put the cap on it. Your lens switch routine will almost certainly take longer.
Still, nobody's saying you have to give up your standard caps anyway. I think there's a place for these things in just about any camera bag, particularly at the start of a trip or the end of the day.
Have a look at the video below to see how the Kurvd lens cap works, and head over to their Kickstarter page to learn more.