The small Dome Port Bag from AquaTech is designed to protect the element and port opening of your dome port. The bag is made from 0.18" (4.5mm), high-stretch neoprene, with a tough, highly abrasion-resistant nylon jersey, laminated inside and out. The neoprene cover neatly stretches over your valuable lens port and will protect the port and the all important element, from sudden shocks and sharp objects.
Note! You can clean/wash the bag in cold soapy water, rinse, and air dry.