OK, so it turns out that RaggTopp cleaner and protectant are OK, but short lived here in humid NC weather. Have used Simple Green and it's OK too. I'd like to try a more aggressive cleaner to make this tan top look pretty clean rather that in constant need of cleaning. I'd then use a protectant like 303. Any other suggestions? We get the occasional 60 degree winter days here, so I could spend a little time on it.