An evening clutch purse can be used as either a wallet or a small but stylish pocket book. They have a number of compartments and zip ups. Evening clutch purses can at times be mentioned as envelope purses. Most are made from leather; other materials also occur but in less frequency. Some come with a double metal frame that is usually magnetic. For those with a vintage design, this may not be applied. A variety of evening clutch purses are occasionally introduced into the market.