Hush Puppies Mike Lace Up For a classic style with added comfort, the Mike Lace up features a textile lining, memory form insole and lace up fastening for a secure fit Fastening:Lace Up Material Composition:Leather/Leather/Other Materials Cow Crust Leather Upper. Lace Up Fastening with Clean Design. Breathable and Comfortable Textile Lining with Leather Collar. Memory Foam Comfort Insole with Leather Sock. Flexible TPR Sole with Stacked Effect Heel and Stitched Leather Rand Detail. These shoes are comfortable with a roomy fit.