In many sports, particularly in baseball, there is only one brand name of cap that always completes the game, the new era 59Fifties. 59Fifty is a brand of hats made by the New Era Cap Company based in Buffalo, New York. In new era's collection of caps, the 59Fifty caps are considered as the first brand of caps that revolutionized the way caps are worn.

They are often referred to as "Fitted Hats" or "Brooklyn Style Caps". They have also become increasingly fashionable in urban centers and within the Hip-Hop culture.

The caps are available in not only every Major and Minor league baseball team in an assortment of colors, but in the NHL, NBA and NFL (Though Reebok normally manufactures the NFL's fitted hats) as well.

The 59fifty is the official on-field cap for every major and minor league baseball team. In recent years, the 59Fifty caps were made of 100% wool and included a gray underbill and white sweatband.

In 2007, new era changed the design of their 59Fifty hats significantly. The hats are now made of 100% performance polyester, which still has a wool feel and look to it, but has been described as softer, more durable, lighter, and fit more comfortably than the old versions.

The crowns are also said to not be as "box-shaped" as the older style. Replacing the gray underbill is a new black colored underbill, which was made to help reduce glare.

The sweatbands have been changed from white to black, in order to make sweat stains less evident. The brims are also said to have become sturdier and do not bend as easily as the older style.

Since New Era's change in design in 2007, the overall reviews of the hat have been positive. They are said to fit better, feel more comfortable, and overall are more asthetically pleasing than the previous hats.

Along with 59Fifty caps, new era also manufactured other brands of caps, including the 49Forthy (fitted, has a lower profile than the 59Fifty, and has a more casual, collegiate look), 39Thirty (a strength fit cap, and is used by MLB as the batting practice cap), 29Twenty (an adjustable, unstructured cap), and EK (consists of designed premium hats and caps).