Charles by Charles David - Swell 2 (Grey Croco) - Footwear Fiercely engage in something animalistic with the 'Swell 2' boot from Charles by Charles David. Leather upper. Round toe. Full inside zip for easy on/off. Adjustable ankle strap with buckle closure. Lightly padded insole. Covered heel. Synthetic sole. 1/2 platform makes this heel feel like 4 1/2.