Samurai helmet

Our first fold of 2015 is this samurai helmet designed by Jun Maekawa. It is a lovely model that I like very much, because it has clean lines and folds precisely. You will need a standard A-format rectangle to make it (here I used A5, i.e. 21 × 14.8 cm). According to the designer, you need to fold it from an A2 sheet to be able to wear it, but I haven't tried!