i aint seen the picture but i think the googles peaty uses have toggles on the side of them and there is like a chemical gel/plastic thing and when you pull the toggle a new layer of the gel/plastic thingy goes over the lens whilst wiping away dirt and grime. Scott make them but you need an offshore bank account for them they cost about 70 notes and replacement gel/plastic is much cheaper. Peaty for world champion at Canberra