What determines the razor position and strokes needed to shave with the grain?

The determination of razor position and strokes necessary for shaving with the grain is primarily based on the direction of hair growth. Understanding the growth patterns is crucial because shaving in the same direction as the hair reduces the risk of irritation, ingrown hairs, and razor burn. When the razor follows the natural path of the hair, it allows for a smoother and more comfortable shave, ensuring that the cut is clean and efficient.

While other factors like hair length, thickness, and type of razor can influence the shaving experience, they do not directly dictate the necessary angle or stroke technique for shaving with the grain. The direction of hair growth remains the fundamental factor that guides how the razor should be positioned to achieve the best results.