In 1996, the Fusion was Karhu's most avant-garde running model; today the Fusion 2.0 features the same look, but with more modern and lighter materials. New version with suede, leather and mesh upper. Perforated details for improved breathability. Wavy lacing system. Label logo on the tongue. Reflective details. Rubber outsole for excellent grip. Padded tongue and interior for maximum comfort.