Composite bats are made of material very similar to carbon fiber, giving the manufacturers much more control over the weight distribution of the bat. They can be made with the weight evenly distributed, or end-loaded where the end of the barrel of the bat carries a larger portion of the weight. Composite bats tend to have a larger sweet spot, but, unlike the other types we will discuss in this section, they do require a break-in time of about 150 hits. We also don’t recommend using this bat in temperatures below 60°F as the colder temperature may cause the bat to crack. However, if taken care of, this bat can last a very long time.