If you want the full version and license for commercial use,
you can purchase here :
https://fontkong.com/product/sunnday/
File Font Version :
1. Sunnday.otf
2. Sunnday.ttf
3. Sunnday.woff
4. Sunnday Italic.otf
5. Sunnday Italic.ttf
6. Sunnday Italic.woff