You have to use nice and beautiful icons if you want to stand out from the crowd and get your visitors attention. After Apple has changed the iOS7 layout to flat style and started using outlined icons, every graphic designer created his own outlined icon set. If you don’t have your own icon set (yet?), we collected for you some free outline icons you can use in your next projects.
Simple Icon Set
Free outline icons
150 Outline Vector Icons
Outline Live Icons (FREE only this Week on CreativeMarket!)