All vector .sketch files are editable in Sketch, Figma, Adobe XD. Sketch App Sources is the largest collection of icons, UI kits, wireframes, and free design resources for Sketch.
Free Download : 200 Webby Icons (AI, Sketch) - Designbeep
Top 50 Free Icon Sets for UI Designers
Satin Icon Set - Part 2 — Medialoot
15 Flat Icons Sketch freebie - Download free resource for Sketch - Sketch App Sources
Free Flat Color Icons SVG freebie - Download free SVG resource for Sketch - Sketch App Sources
World Peace Icon Set Sketch freebie - Download free resource for Sketch - Sketch App Sources
Free Office Icon Set - Freebie No. 16 - Super Dev Resources
50 Colorful Flat Summer Icons [Freebie] — Smashing Magazine
Creative Process vector icons free download