Koen van de Leur. Hairdresser. Amsterdam. Koen is a barber with a steady hand for fades and classic cuts, focused on precision and a relaxed grooming experience. Hairdresser. Amsterdam. Koen is a barber with a steady hand for fades and classic cuts, focused on precision and a relaxed grooming experience. Hairdresser. Amsterdam. Koen is a barber with a steady hand for fades and classic cuts, focused on precision and a relaxed grooming experience.