Curly hair textures have a definite “S” shaped curl pattern. 

3A: You have big, loose curls and spirals similar in circumference to a piece of thick, sidewalk chalk. Your curls tend to be shiny, with a well-defined S-shape.

3B: Your springy curls can vary from ringlets to corkscrews. They are voluminous and have a circumference similar to a Sharpie marker. Type 3b hair tends to be coarse and dense.

3C: This often is referred to as curly-coily and tends to be very dense, tightly packed corkscrews that are the circumference of a pencil or a straw. Type 3c hair tends to experience the most volume, but also the most shrinkage of curls.