When Vibram introduced the Mini Ripple sole several years ago we were one of the first manufactures they offered it to. We experimented with several ways of incorporating the sole into our footwear and eventually settled on a stacked leather heel. This is a time consuming and laborious process that involves stacking and shaping two separate layers of leather to fill in the space in the arch of the boot. We have offered the configuration regularly through collaborations with some of our retail partners, but this is only the second time it has been produced for Viberg.com. We had been planning a release like this for some time and when we saw the Bone Chamois from Horween we knew we had found the perfect material. Purchase the Service Boot Bone Chamois here.