Altra Men's Experience Flow ST import_2022_08_08_144322 our breathable Butter Blend™ Boxer

our breathable Butter Blend™ Boxer Briefs with a fan-favorite Wholester™ support pouch provide maximum support and unparalleled comfort

This clip-on strobe allows you to always be seen

Monitor your overall health and wellness with wrist-based heart rate1 and more

Multiple pockets

Altra Men's Experience Flow ST import_2022_08_08_144322 our breathable Butter Blend™ BoxerExperience a new reality in a shoe with gentle guidance, made to lead you on a euphoric and effortless road run. Featuring GuideRail technology, with medial guidance for an inherently stable ride, and a new lightweight and efficient Altra EGO P35 midsole foam. Hit the road for daily miles or training runs with the comfort and stability your feet are craving. Its got the Altra Fit, with room for your toes and a secure midfoot for natural movement. A