- Quién
- Michael Johnson
- Qué
- 16.60 centimetre(s)
- Dónde
- Reino Unido (Sandbach)
- Cuándo
The longest back hair (male) is 16.60 cm (6.53 in), and belongs to Michael Johnson (UK), as verified in Sandbach, Cheshire, UK, on 21 February 2022.
This record surpasses the previous record by over 3 cm!