Red Wing's Leather Footbed has a top surface of 1oz full grain cattle hide, with a rubber sponge that provides a minimal amount of compression for comfort and support. This footbed can assist as a fitting aide if inbetween sizes or widths, due to the small amount of volume that it takes up when in the footwear.
Full Grain Leather
Total thickness 3.45mm
Comes in five sizes: X-Small (U.S. 4-4.5), Small (U.S. 5-6.5), Medium (U.S. 7-8.5), Large (U.S. 9-10.5) and X-Large (U.S. 11-13)