The average photographer will likely never need this kind of apocalypse-grade lens protection. But, for those who put their gear in harm's way, Beta Shell has built these nearly-indestructible lens storage tubes. The 6mm ABS shell has a hard gloss coating. The interal padding is made from memory foam -- like the stuff you'd find in a mattress -- which protects the lens from impacts. A water-tight top lid keeps liquid out and stainless screws hold the whole thing together to create a case that the company has tested with methods like running them over with a truck.