Kuvrd is the universal lens cap system we didn’t know we wanted and absolutely deserve. It’s a stretchy, waterproof, dirt proof, silicon lens cap that can fit any lens out there. Since it is so flexible, you can squish it into any space when not in use then pop it right back out for protecting your lens. The snug fit means it can’t fall off, so you don’t have to worry about losing it until you take it off and realize it doesn’t attach to the camera. Just hang on to it. It’s worth it. A pledge of $30 gets you one when they ship in Jan. of 2018.