What does the term "razor fade" specifically refer to in barbering?

The term "razor fade" specifically refers to a fading technique that utilizes a straight razor to create a smooth transition between lengths in the hair. This method allows the barber to achieve a clean and sharp finish at the fade line, blending different hair lengths more seamlessly. The use of a straight razor provides an enhanced level of precision and control, allowing for softer edges compared to clippers alone, which can sometimes leave harsh lines.

In contrast, using only clippers focuses purely on cut length and might not achieve the same refined fade characteristic of the razor fade. The references to heavy layering or avoiding tools do not pertain to the essence of what a razor fade is, as this technique prominently features the straight razor as an essential tool in the fading process.