Arcopedico L19 Black Reptile Zippered Ankle Boot, size 38 | 7-7.5 US Stretchy Fabric Polyurethane Sole Lytech Upper Arch Support The L19 is a favorite of Arcopedico customers! This bootie's patented Lytech synthetic upper material is lightweight, breathable, vegan, and offers a flexible barely-there feel to help promote healthy circulation.