I was drawn to this subject by the stripes on his shirt. Most of the plaids I’ve tried to draw have very fine mesh. This one had very broad stripes. I began by copying the distortion of each vertical stripe with the hope of replicating the person’s underlying musculature. Attention to this kind of detail is not the best technique to use for a quick sketch.

Man with Stripes on His Shirt
Pencil Sketch
5″x8″ 110# Moleskin Journal