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