Birkenstock Sydney Birko-Flor Women's Hoka One One Whether you run on a

Whether you run on a treadmill

This style is in the NARROW width with the REGULAR footbed

100% RPET Repreve Webbing

from forefoot flexibility that makes walking feel easy

injection-molded EVA outsoles that have anatomically positioned flex grooves so you get full range of motion without resistance

Birkenstock Sydney Birko-Flor Women's Hoka One One Whether you run on aBirkenstock's Sydney has both form and function. With its two simple straps, it covers fashion and comfort. This version features silver toned buckles and silky sheen finish. The upper is made from the skin friendly, hard wearing synthetic material Birko Flor with a silky sheen.