Here, here on Line-X. Looked at alot of different products. About the only product that is as good, which isnt sold nationally is a full 100% poly-urea liner. I know they have some places up in WA. Line-X is a poly urea/poly urethane blend. It is a harder surface than the Rhinolined beds I have seen and touched. Rhino fades more quickly and weathers...but it has a softer "feel" to it...which some people like. I know I have roughed up a knuckle or two on my Line-X...but I would have busted a knuckle anyway...right? Too, if you have a dog or haul stuff, I think the Line-X holds up the best. When it gets dirty, muddy, whatever, a pressure washing restores it pretty well. A light scrub if it want it 'shiny'.
It is one of those, you get what you pay for items, IMO. Definitely not a place for buyer's remorse.