The 9FORTY M-Crown features an embroidered raised Atlassian Williams F1 Team logo on the front a structured and contoured featherweight polyester crown, Carlos Sainz's "Chili" logo on the undervisor, team sponsor embroidery throughout the crown, driver number and team details on the visor, contrast piping details along the crown and sandwiched visor, and at the back an adjustable snapback enclosure.