Oppermann London is a popular luxury leather maker that specializes in men’s accessories such as bags and wallets. More recently, the company has ventured into making iPhone smartphone cases; they sent over their slim leather case for the iPhone 7 Plus for us to review. So let’s get right into it. Available in four colors (Cognac, Chocolate, Black, and Grey), the Slim leather case for the iPhone 7 Plus is also available for the smaller iPhone 7, but both overall are fantastic. Made of vegetable-tanned leather, compared to Apple’s very own leather case, the Oppermann London iPhone case not only…