The Liv 02 have adjustable laces and a functional zipper for a quick on and off. The memory style insole is removable, which you can change as needed. The rough sole pattern will give you a comfortable feeling with every step and suitable for almost all work and everyday outfits. Material Type: Synthetic Lining: Drysport with Membrane Insole: Removable Memo Soft Insole Fastener: Zipper+Lace Outsole: TR-Sole Heel Height:3.5 cm