Procreate outline brush set. Get this from svgfilestreasury.etsy.com
With this two color Procreate brush you can draw fill with outline simultaneously. There is option to draw with darker outline and lighter outline.
After you lifting a Apple Pencil you can easily continue drawing and there will be no crossed outlines.
You can purchase it from https://svgfilestreasury.etsy.com
Common uses are for drawing, lettering or coloring on iPad. This brush works on Procreate app on iPad and Procreate pocket app on iPhone.