OM System LC-37N Lens Cap

The fit is exactly right for my 37mm lens – no wobble or looseness at all. I like how the spring-loaded clip gives a satisfying click when it locks into place.

The clip mechanism snaps on securely with a satisfying click, so I never worry about it falling off in my bag. It's lightweight and doesn't add bulk, which makes it easy to keep on the lens between shots.

This cap snaps on and off with a satisfying click, so I don’t worry about it popping loose in my bag. Fits perfectly on my lens and feels sturdier than the generic ones I’ve used before.