And the GuideRails(TM) support system helps keep you comfortably in your stride

Lugged outsole inspired by 355 trail running shoe

round toe silhouette

Using the same ChacoGrip™ rubber outsole with an added top layer of ultra-soft polyurethane (PU) to cushion every step

Lining and insole: textile

BIRKENSTOCK BOSTON SOFT FOOTBED NARROW Size:42 And the GuideRails(TM) support systemSo classic and consistently comfortable, the Boston clog has become a coveted, year round favorite. Velvety suede lends an effortless feel to the style. Featuring an additional foam layer for cushioning, its soft footbed offers extra comfort plus go all day support. Cushioned soft footbed creates custom support with wear Classic suede upper Suede footbed lining helps keep you comfortable Flexible EVA sole Adjustable strap with metal pin buckle Made in