Today, while searching for additional sets of mono web icons to add to my collections, I came across this Super Mono Icons set designed by Double-J Design.
Super Mono Icons set consists of 1728 monochrome icons comes in 3 styles: Basic, reflection and sticker styles. Basic and reflection styles come in four different colors: Red, green, yellow and blue.
This icons set is licensed under Creative Commons Attribution 3.0 license, which means, you can download and use them in your personal and commercial projects, however, a linkback to the creator’s site is required. If you intend to not providing a linkback, a royalty-free license is available for purchase at £30.