Fast Track Products Groom Hat 1. Heavyweight Knit Beanie. 100% acrylic, tight knit allows for easy embroidery, Machine wasable, approximately 8 1/2" long. One size fits all. Colors: White or Black. Embroidered Groom Swoosh design on hat front in your choice of embroidery thread color. You can choose an optional personalization of an embroidered name or rhinestone name on the back of the hat.