Classic jeans are a clothing essential that everyone has (or should have) in their wardrobe. What are classic jeans, exactly? You know, that pair of everyday denim that you can easily slip into no matter what your plans are. They’re often a versatile blue wash and a straight or simple cut that can be styled with just about anything. But as easy as classic denim is to wear, it’s not always easy to find. The fit can be tricky...