On Cloudswift 4 Alloy Glacier Men's Size:8.5 Original BIRKENSTOCK soft footbed

Original BIRKENSTOCK soft footbed

Optional Turn down top for a different look

compression-molded EVA with our non-marking 'Wet Grip Rubber' pods inspired by island flora

Compression molded EVA footbed

for a shoe with an amazing ride that not only keeps feet comfortable mile after mile

On Cloudswift 4 Alloy Glacier Men's Size:8.5 Original BIRKENSTOCK soft footbedOn Cloudswift 4 Alloy Glacier Men's The road running shoe for city streets gets a performance upgrade with soft Helion superfoam and breathable fabrics. Weight: 278g New dual density Helion superfoam midsole for soft landings Breathable one piece upper with perforated toe box Updated cage construction for better midfoot lockdown Nylon blend Speedboard for a responsive ride Fresh aesthetic and comfortable fit Rockered geometry for a forward rolling