Browse lage selection of CUSTOM TRUCKER HATS. We also have Basic Flexfit Wool Cap Give your head a treat with this high-quality, embroidered Flexfit cap. Available in two stretchable sizes, it gives you a really comfortable fit. Our cap features a Permacurv® visor, silver underbill, fused hard buckram 8.89 cm. crown, 6 sewn eyelets for breathability and taped seams.