Promaster リアレンズキャップ - Nikon Z

The dust seal is snug enough that I don't worry about pocket lint getting in, and the release mechanism is smooth without being loose. Fits my Z lenses perfectly.

Finally, a rear cap that clicks on without that annoying wobble—it seats perfectly on my Z lenses every time. The dust protection is solid, and I don't worry about the rear element when I'm swapping glass in a hurry.

The plastic feels sturdier than most rear caps I've used, and it clicks on with a satisfyingly solid lock. Keeps the dust off my lens mount when switching glass in the field.