Blank Foam Trucker Hats - BK Caps Foam Front Mid Profile Mesh Back (44 Colors) - 3025. Mid profile polyester vintage foam front mesh back trucker hats and this hat is one of our top 10 best wholesale trucker hats! Features six rows of stitching. Pre-curved bill. Adjustable plastic snap-back closure. One size fits most. 100% polyester. Made in China. Colors available: white, black, royal, navy, orange, neon yellow, neon green, red, kelly green, turquoise, brown, khaki, light gray, dark gray, gold, pink, purple, fuchsia.