Adidas Adizero Adios Boost

Best for Long Distance

There's a reason this shoe is helping to break marathon records: Its midsole eschews standard EVA foam for a material made of thousands of tiny pellets that yields a more efficient energy return. Most of our testers liked the springy feel and the resulting comfort on long-haul runs. A Continental rubber outsole sticks on rain-slicked roads, too, in case your many-miled adventure runs into a storm. (7.8 oz; 10mm drop) [$140; adidas.com]