Explorer Ultra Blue is a men's fragrance by the luxury fashion brand Montblanc. It is a flanker to the original Montblanc Explorer fragrance, which was released in 2019 and quickly became a popular scent. Explorer Ultra Blue was launched in 2021 and is described as a fresh and aquatic fragrance with notes of Italian bergamot, clary sage, marine accord, patchouli, and leather. The fragrance is designed to evoke the feeling of exploring the ocean and the fresh sea breeze. It is marketed as a scent for the adventurous and confident man who is always looking for new experiences.