The top kangaroo skin is used, because the toughness and wear resistance of kangaroo skin are higher than that of cowhide, but the weight is lighter than cowhide.

The interior is made of GROE Tex, a special material used in military and aerospace, which can achieve waterproof and moisture permeability. The inner sleeve is fireproof, and it is flame retardant 1 1 sec.

Key components are hardened with carbon fiber or titanium alloy. There are also styles that use Kevlar, which is a bulletproof material.

The lower layer is cowhide, carbon fiber and titanium alloy.