ALTRA Women's Via Olympus Make every stride more comfortable than the last in the VIA Olympus. Take on any road run in 33 mm of Altra EGO™ MAX midsole, our highest stack height yet. This luxurious, lightweight foam is designed specifically for a plush ride, no matter the distance. Size 10.5 Style: 551 Pre-owned condition. The mesh is open in one spot on toe. See pics.