Givenchy Paris Bedford Line Black Slip-On Flat Mules

Stylish Givenchy slip-on mules in black. Features a sleek design with brand logo. In good used condition, some wear please see photos. These were taped on the bottom (probably used for a photoshoot or something). I tried to remove the tape because it didn't look good on feel good when walking but now the bottoms are sticky due to the tape residue. Might be an easy fix or need to be resoled.