Zone 3 Trucker Cap The Zone 3 Trucker Cap is perfect for wearing casually to and from training or on race days. Designed with a mesh back, the Trucker cap provides exceptional breathability during hot weather. The mesh allows air to fully permeate the entire fabric, providing a constant supply of fresh, cool air. In addition, the lightweight design is made from 100% Polyester and features 3D embroidery for added style and personality. The cap offers a snapback closure which creates a universal and personalised fit. Lastly, the six panel, low profile design with adjustable curved peak provides superb comfort and much-needed adjustability.