GuideRails™ holistic support system: Innovative technology that supports your body’s natural motion path while controlling excess movement to keep you comfortably aligned

The wide sock allows for more stretch and provides a comfortable fit to those with wide feet or swelling

The built-in orthotic system features: Arch support that stabilizes your body

Material Metal

BIRKENSTOCK BOSTON CHUNKY WOMEN'S Size:37 GuideRails™ holistic support system: InnovativeA chunky platform sole takes the Boston clog's iconic design to new heightsand your style along with it. Velvety suede feels as classic as the original, with fresh perspective from the statement platform below. Designed around a contoured footbed, this style feels better and better with wear. Contoured cork latex footbed creates custom support with wear Classic suede upper Suede footbed lining Platform EVA sole: 1. 25" Adjustable strap with metal pin