BEST FOR: Dry-weather road racing.
THE TEST: Like most minimalist shoes, the 155 is ultralight (6.2 ounces) and nearly flat (a three-millimeter heel-to-toe differential), with a largely mesh upper. Unlike the majority of them, the 155 is designed specifically for road racing, which means no spacious forefoot or hard rubber underneath. Instead, you’ll find a snug forefoot and soft outsole, which makes for exceptionally responsive toe-off. Our one concern: while road feel was excellent, punctures from glass and burs had us questioning durability.
THE VERDICT: Our top lightweight race shoe. 6.2 oz; 3-mm heel-to-toe drop