Phantom 4 Size:9 We recommend sizing down if

We recommend sizing down if you are a men’s half size

next-level update to our bestselling yoga sandal design

it is made from ultra light and highly flexible EVA

the Sport Flex delivers the premium comfort you expect from OO with modern versatility

The QO500 lace-up sneaker by BIRKENSTOCK® offers everyday style and on-the-job comfort and safety

Phantom 4 Size:9 We recommend sizing down ifExperience the ultimate in cushioned comfort with the Men's Road Phantom 4. This high cushion neutral trainer features an all new upper, midsole, and outsole design that delivers a sleek, dynamic aesthetic. With an increased stack height of 35 30mm, you'll enjoy enhanced cushioning for every stride. Our advanced ZipFoam compound is lighter, softer, and more responsive than ever before, making it ideal for daily miles, running, walking, and all day