This is a Balenciaga Track Slide Sandal - Triple Black.
Design:
• Model: Track Slide (sneaker sandal hybrid)
• Color: All black - black mesh, black rubber, black TPU overlays
• Upper: Mesh base with complex layered rubber / plastic cage overlays like the Track sneaker, open-toe and open-heel slingback
• Sole: Chunky, aggressive treaded outsole - same as Balenciaga Track Runner sneaker, with "BALENCIAGA" debossed on bottom, size sticker "42" visible
• Footbed: Black textile with "BALENCIA" printed in white