Upper Material: Matte gray nubuck or smooth calfskin leather with clean minimal stitching.Sole Construction: Thick, contrast-white flat rubber cup-sole offering a modern casual look.Aesthetic Matches: The styling heavily takes inspiration from minimalist premium smart-casual footwear like the Cole Haan GrandPrø Luxe Slip-On Sneaker or the Ecco Soft 7 Classic Sneaker.