Top: Higher grade Acacia, Side/Back: Koa, Neck: Okoume, F/b: Walnut, Bag included - Flight's DUC445 Acacia is a concert ukulele made from acacia. Acacia is in the same family as Hawaiian koa. If you're looking for the real "island sound" at an affordable price, this is the uke for you! This ukulele has a fantastic gloss finish, making it look as great as it sounds.