Like many of Maui Jim's products, the name is inspired by the island culture. Chee Hoo is a phrase many Hawaiian's say when they are excited, and there is definitely a reason to be excited about this pair of sunglasses. These sunglasses give you the classic rectangular shape that many are accustomed to. The frames of these sunglasses are made of a lightweight acetate frame that has been double injected with metal. This exciting pair of sunglasses will be great for your next adventure.