The Trail M2 from Pearl Izumi offers bilateral midfoot stability for nimble security on the most technical terrain. The protective and stable E Motion platform coupled with a supportive seamless upper offer the dedicated trail runner a rugged, yet fast footwear package. . Bilateral midfoot posts are trail tuned to keep your feet on top of the midsole platform in technical terrain provides stability and nimble security on technical trails. Dynamic offset: 4 mm at initial contact to 7.5 mm at midstance. Substantial cushioning with heel stack height of 24.5 mm includes midsole and outsole. High density EVA at medial midfoot to resist midsole compression. Biomechanically tuned dynamic offset shaped E Motion midsole for a midfoot pronation running gait. E:Motion midsole features continuously changing offset as the foot transitions from initial contact through to push off creates a naturally low drop motion for the foot with a smooth, no slap transition, reducing shock and allowing a more fluid stride. 1:1 Energy Foam cushions forefoot upon impact and returns energy back to the runner. Forefoot rock plate protects foot against stone bruising and rock push through. Aggressive, multidirectional carbon rubber outsole offers superb traction and abrasion resistance. Seamless upper creates a supple and supportive fit for technical trail running.