How do you crochet a beautiful and unique Rainbow Hat?? How your family and friend will react when they will receive a unique, handmade and useful gift that they can use? Here you will find the pattern to crochet an amazing Rainbow Hat. Crochet Skill level - Beginner Instructions on how to change size Materials used: Crochet hook: - 3 mm hook or size needed to obtain gauge Yarn: For the hat (blue color): - One Ball of Adriafil Genziana (50 g/1.76 Oz; 185 m/202 yds; main color); 100% Wool (merino). - Seven balls of each color (red, orange, yellow, green, blue, indigo, violet and white) Adriafil Mirage (50 g/1.76 Oz; 125 m/136 yds); 55% Wool - 45%Acrylic. Other: - Scissor, tapestry needle.