Aki Asahi is one of my favorite resources. Their camera coverings are inexpensive, high quality, and precisely cut. I have not used them for light seals (prefer Jon Goodman for that), but I would not hesitate for any of their goods. The ship fast too...less than a week from order to receipt.
BTW, it is not obvious, but any of the covering materials they show for any camera are available for all. You are not limited to the choices in the drop-down menus. Likewise, the cameras they support are not limited to those in their catalog. It is worth sending them an inquiry. One more thing, they send a practice set of materials (usually a yucky color) with each order so that you can learn how without risk to your real kit. Great folk there at Aki Asahi
Steve
(...have one of their kits for my Zorki 4K waiting for when I finish the roll of film in that camera...)