I just bought my second lens skin from https://alphagvrd.com/
I take my lenses out on the fresh and saltwater in my kayak. I tried neoprene covers and was never pleased with the fit and slop. These covers fit my Nikon 800 PF and the Nikon 180-600 like a glove and protect the lens from water splashes and ensuing spots. Applying the film requires going slow (for me) but once on they look great, protect the lens, leave all controls and even lettering visible and do not move around.
I take my lenses out on the fresh and saltwater in my kayak. I tried neoprene covers and was never pleased with the fit and slop. These covers fit my Nikon 800 PF and the Nikon 180-600 like a glove and protect the lens from water splashes and ensuing spots. Applying the film requires going slow (for me) but once on they look great, protect the lens, leave all controls and even lettering visible and do not move around.