Baja Boss At. The Baja Boss® A/T provides premium on-road handling, performance, and tread wear while also dominating in the mud and snow thanks to its pioneering asymmetric tread design, silica-reinforced compound, extreme Sidebiters® and revolutionary PowerPly XD™ 3-ply, construction*. It's Mickey Thompson's most innovative hybrid A/T to date - aggressive looks, low noise, long-lasting tread, and smooth ride. Asymmetric tread pattern is optimized for reduced noise, off-road traction & on-road handling. Extreme Sidebiters® are 150% deeper than the Baja ATZP3™ for a bold look, extreme off-road traction/protection (LT sizes only). Powerply™ XD adds heavier denier cord to the angled third ply providing better puncture resistance, quicker steering response, and greater stability (LT-Sizes Only). T1 compound (LT sizes) and S1 compound (SUV sizes) provide excellent wet handling/braking, lasting treadlife, and cold/wet weather traction. *By request/order.