The Gillette Mach3 men’s razor is engineered for a precise, classic shave you can trust. With three stronger-than-steel blades that stay sharper for longer (vs. Sensor3), it’s no surprise why it’s the world’s no.1 3-blade razor (Procter & Gamble calculation based on Nielsen sales information September 2018 – August 2019. Among Male 3-Blade System razors).