GU is a budget line of UNIQLO which is a favorite casual fashion chain. When I visited Okinawan a year before, GU was one of the must-visit spots for me.
I like UNIQLO brand a lot. Their clothes are quite high quality and comfortable, but the price tags are quite expensive. I found GU got the similar quality of UNIQLO, but the price is much lower. I visited the Okinawan site got a discounted stocks. I bought a jacket under AUD$50. Moreover, if you go to play store and download the GU app, then you get the member price. Roughly, we can get 10% off on the full-price goods. That is not bad. If I visit Okinawan next times, I will visit there again.