Duralumin or Duraluminum is an Aluminum-alloy, in where the main components are copper, manganese, and magnesium. It’s the lightest and least expensive of the all-metal options for Mengane. Duraluminum is mostly recommended for children and lighter Kenshi, or for those who engage only occasional Kendo practice.
The light weight makes it comfortable to wear; however, a lot of practicing and exposing the men to lots of impacts together with long exposure to sweat may eventually weaken the attachment points of the horizontal bars. In such cases, Titanium Mengane, which are more durable are recommended.