Secrid 'Slimwallet - Matte Black-Black' Wallet. The name really says it all; the Slimwallet is tiny and fits easily in any pocket or purse. However, due to the clever design you will be surprised how much it holds. The Cardprotector can hold four to six cards. The leather interior of the Slimwallet offers sufficient space for at least four additional cards, business cards, paper money and coins.