Flat attack is hands down the best tire sealant on the market for tubed tires. Unlike other green sealants that tend to dry out over time, Flat Attack does not. You can run over a nail, and Flat Attack will seal it. It’s backed by a 5-year guarantee and has been rigorously tested for reliable use in the backwoods. If you want the peace of mind of not having to worry about fixing a flat, look no further than this product. Best of all, Flat Attack is made in Utah!