Start

 

Step 1

Fold the lower striped section of the flag over the blue field.

 

Step 2

Folded edge is then folded over to meet the open edge.

 

Step 3

A triangular fold is then started by bringing the striped corner of the folded edge to the open edge.

 

Step 4

Outer point is then turned inward parallel with the open edge to form a second triangle.

 

Step 5

Triangular folding is continued until the entire length of the flag is folded in the triangular shape with only the blue field visible.

 

Completed