The NIOBIUM C_3 features a dual-layer design with an outer layer crafted from waterproof and breathable eVent material, and an inner layer utilizing insulating PRIMALOFT filling. The white-gray color scheme represents a snowy landscape, while the inner texture symbolizes the crisp winter sky. The Japanese characters on the shoe are inspired by the poetry of Kenji Miyazawa. Drawing inspiration from the MT580, the sole has a flat and stable midsole, incorporating lightweight ROLLBAR material and a Vibram outsole for durability and traction. The overall design seamlessly combines functionality with a touch of fashion.