ProMaster プロフェッショナル スナップオン レンズキャップ – 77mm

Finally, a cap that stays put with that center locking mechanism—no more worrying about it falling off mid-hike. The precision molding makes it fit my 77mm lens perfectly without being too tight.

I've had cheap caps pop off in my bag too many times, but this one hasn't budged since I snapped it on. The center button release is firm without being stiff, and the precision molding seats it flush every single time.

The center-lock mechanism makes it quick to snap on and off, and it fits my 77mm lens perfectly without any wiggle. I've been using it for a week and it hasn't popped off once, even in my bag.