How to Draw Unique Fabrics
Draw a little leather jacket.
Draw the top half of a female fashion figure. Map out a short and tight little jacket. Add folds on the side where the waist might bend, on the elbow of the sleeve, and coming from the top of the sleeve.
Use the side of your pencil to block out the darkness of the leather and leave areas white for shine. Darken around the folds to show the depth of the fabric.