Leather uppers made in Spain according to EU and REACH quality standards. Leather fits easier to the foot without losing its shape, making it feel much more comfortable. Another of the features of this leather is its tanning, giving it a unique appearance which is reflected in the varied, irregular grain pattern. Comfort last has a slanted design that fits with the natural shape of the foot. It has been made studying the anatomical shape of the foot so that the shoes are replicas of the natural design of our bodies. The styles that have this ergonomic shape do not compress the foot when either walking or at rest, providing great comfort and health with every step. Removable insoles with an anatomic design. An advantage for those who need to use their own orthopaedic insoles or people whose feet sweat profusely. Made from recycled PU.