SORA means sky in Japanese, and ZORA is just transformed from SORA.
A simple translation of SORAZORA is SKYSKY.
However, there is a way in Japanese to imply plural or express various by repeating the same word. For example, “YAMA YAMA”, yama means mountain, and repeating the word suggests there are more than one mountain or different types of mountains.
Although the word SORA is not used in this manner by Japanese, “SORAZORA” is our way to suggest that nature always gives us a great variety of colours, shapes and motions, providing unlimited moments like the sky.