There are a few different things to consider when trying to decide which is better bamboo or cotton. One thing to think about is the absorbency of each material. Bamboo is a very absorbent material, while cotton is not as much. This means that if you are looking for something to use in order to soak up spills or sweat, bamboo would be the better choice. Another thing to take into account is how each fabric feels against the skin. Bamboo is often described as being softer than cotton, making it more comfortable to wear next to the skin. Cotton can sometimes feel a bit scratchy in comparison. Finally, you should also think about the price of each fabric. Bamboo tends to be more expensive than cotton, so if budget is a concern then cotton may be the better option for you.