There are different types of jeans. While there was only an option for pure cotton in the past, this is not the case these days. A pair of jeans we call the cotton stretch provides the most stretch. This fabric is a mix of denim and elastane. It may also feel like cotton, but it is actually not. It provides more stretch compared to cotton. And when it comes to materials and their stretch capacity, read on below. Cotton. This type of jeans is the most common. This is also the most timeless of them all. But when it comes to jeans that are 100% cotton, there is a concern. And that concern is that they can be too rigid and tight. If you are looking for a pair that will stretch the most, this is not your best bet. Jeans made of cotton will be stiff and rigid when you buy them. They will remain the same after you wash them. And once you start wearing them for a few days, these jeans will hug your body according to their shape. Cotton Stretch. This is the other option in the market. The cotton stretch style will stretch right after you wear them. These types of jeans are of denim and elastane mix. These materials may feel like cotton. But they are not. The way it stretches will bring with it enough rigid feel. When you are looking for a pair of jeans with the right amount of stretch, this is your best option.