In this video for Core77, Michael DiTullo, design director at Converse (you know him as Yo), has 2 blue markers and a microphone. Here, he throws down a casual, summer sneaker concept sketch in 4:39. This is real-time folks. None of that stop-motion photoshop stuff, and no aftereffects. (Makes you wonder how many sketches he can do in an 8 hour day?)
For those aspiring design renderers, notice 3 key ingredients:
1) He moves the page! Mike is constantly turning the page so that his fingers and wrist can draw the lines comfortably. Think of this as "drawing with 2 hands."
2) He keeps a supply of sharp pencils! This is critical: you can't get that line quality unless you start off with a nice point and work down from there.
3) He uses the tip as well as the side of the pencil. Duh, but you'd be surprised how many designers forget to change the grip of their pencil while sketching.
(Bonus factoid: That ironic straight edge he uses once at the start of the rendering? He's had it for 15 years.)
Enjoyed this video? Got inspired? Let him know in the comments!