Helen had a signature look featuring colorful flowing caftans and muumuus and oversize chunky necklaces. Women generally wear cotton muumuus or similar clothing that covers most of the body. Robbit must explore each expansive new world to recapture all the lost MuuMuus. Muumuus for local Hawaiian residents are more subdued in tone. Muumuus are also popular as maternity wear because they do not restrict the waist.