Michigan Wolverines ''M'' Navy ZH Flex Hat Fitted cap in Michigan Wolverines team colors with contrasting eyelet stitching and button. Primary school mark on the front and secondary on the back You can tell this high quality Michigan Wolverines cap is made by Zephyr because of their signature "Z" embroidered on the side. Low, fitted crown shape is comfortable and stylish to wear and the heavy duty wool blend means you can wear it for years, but never wear it out.