A trucker hat or mesh cap is a type of baseball cap worn in the United States. It is also sometimes known as a "gimme [as in 'give me'] cap" or a "feed cap" because this style of hat originated as a promotional give-away from feed or farming supply companies to farmers, truck drivers, or other rural workers.
The design of a trucker cap is similar to that of a baseball cap, with a slightly curved bill in front, a cap constructed from six almost triangular gores, and a button on top. Instead of being made of cotton fabric like a typical baseball cap, the front section of a trucker hat above the bill is foam, and the rest is plastic mesh for breathability. The foam front of the hat stands up straight and stiff, which makes the trucker hat taller than most baseball caps. There is an adjustable plastic snap or hook-and-loop closure in the back to ensure that one size fits most. This design was intended to make the cap much cooler in the sun or hot weather for the comfort of the wearer.
The original feed caps bore company logos on the front foam section of the cap, either printed or as a patch sewn on. These companies typically had a rural clientele. Trucker-style hats can now be found with other pictures, logos, flags, camouflage, or humorous sayings on the front. Trucker hats are still available as promotional items. Some view the hats as a lower class or style than other the types of baseball style caps. Regardless of this, the "Trucker Cap" has maintained a loyal following of savvy wearers.