Exotic leather wallets

Wallet styles. There are four basic styles of men’s wallets

Standard or Hipster

By far the most common type of wallet in the USA. 
Named Hipster because it is most often carried in a man's hip pocket or the back pocket in a pair of pants. Available in a range of sizes, including the most common 6 or 8 pocket billfold bi-fold. Some larger versions hold 10 or 12 credit cards. 
Variations include various flip-up/flip-out sections, ID windows, and due to increased need to show your ID, a Pass Card version that has a removable section to hold your ID and maybe a credit card and some cash.

Another variation is the tri-fold. Most tri-folds are carried around by hand like a purse.

Vertical Format 
a.k.a. Hong Kong style

Is taller than it is wide. While it is wide enough to hold an unfolded US Dollar Bill it is designed to hold some of the much taller foreign currencies as well. Like the standard format these Vertical Format wallets have variations that include various flip-up/flip-out sections and ID windows.

Front-Pocket Wallet 

An increasingly popular design as more men recognize that they have relatively few items that are so essential to be on your person at all times. While a US Dollar Bill must be folded in half or thirds to fit inside these smaller format wallets have plenty of room for your driver’s license, 2 to 4 credit cards and several business cards or the equivalent.
Users of these wallets often use a money clip to hold the smaller dollar denominations which has the benefit of being able to keep your wallet in your pocket while paying for most items/activities.
The added advantages of this format are that your wallet is more secure from pick-pockets.

Breast-Coat Pocket
a.k.a. Long Wallet or Lapel Wallet

Associated with a more sophisticated European look, the kind of wallet that James Bond carries in his dinner jacket. This format is the most elegant and, in today's less formal world, the least practical. Well suited for special occasions and for traveling, these large wallets can be expensive, especially when made in crocodile. For these reasons most men who use this format also have a primary day to day wallet.

Exotic skin wallets