Usually 79p but it's free today.
Matericons is a fully flat icon pack with transparency and brighter&bold colors. All icons are manually crafted with carefully and following material design guidelines.
Are you scared of transparency? don't worry, icons fit the best with dark wallpapers, see the screenshots above. You can try them with brighter wallpapers too.
1. 560 + icons
2. 26 cloud wallpapers
3. XXXHDPI icons ( 192x192px )
4. Supports Muzei
5. Manually vectorial crafted icons
6. Supports 23 major launchers
7. Search icon options
8. Icon request tool inside the app
9. Help section
10. Black theme in options
11. Report bugs
12. Image picker