The 3100 is an ideal size for use as a day-to-day wallet, with plenty of room for coins, cards and cash. The wallet has a large zip-closure main compartment, and a smaller inner pocket, which also acts as a divider. Part of the Comme des Garcons Very Black series, the SA3100VB is made from premium cow-hide leather with all-black detailing, right down to the tissue paper the wallet is wrapped in.