Made in Europe under the most stringent manufacturing, environmental, and labor laws, Lowa has earned a global reputation for great fitting boots. Details like how a LOWA boot tongue automatically centers on your foot make a big difference when you're out on the trail. The same PU (polyurethane) that makes Lowa boots so supportive is also the most durable midsole material available. PU is more expensive, so not widely used. Boots made with PU last at least twice as long as boots with EVA midsoles. With PU, you get better value for your money & fewer boots end up in the landfill.