From 5k to ultra, your Men’s Altra Rivera 2 is the versatile running shoe your feet will be craving whenever you hit the streets. The sophisticated sibling to the original Rivera, it boasts updated, premium collar-lining material and cushy Altra EGO™ midsole for an even more snug and responsive ride than before. Enjoy the same breathable mesh upper you love for intense runs, but now, feel safer in the dark with an added reflective and embroidered detail in the heel. With the Rivera 2, no start time is too early and no end time is too late.