Boston Clog - 1028193/TM So classic and consistently comfortable, the Boston clog has become a year-round favorite. Soft suede adds a casual touch to the style, paired with an oiled leather strap for a touch of heritage. Complete with an original contoured footbed that will feel uniquely yours wherever you wear it. Upper Material: Natural Leather The natural leather we use is mostly smooth leather, with some being pebbled leather. This type of leather has many special characteristics, such as breathability, adapting to the shape of the foot and durability. Insole: Natural Leather Footbed Material: Cork Outsole: EVA