100% natural, breathable leather upper neoprene ��sock�� insert premium cushioned insole with side-zipper entry and exit. The neoprene sock insert paired with the all natural leather upper means that this shoe will adapt to your foot over time, even changing with you from morning until night as your feet swell slightly the longer you are on them. These run normal, but given the neoprene and leather and lacing options, it can accommodate almost any width. If you need a half-size, consider buying the next size up since the sock will hold you in place, especially if you tighten the laces.?