Running shoes FuelCell Summit Unknown v4 is a model designed for running in difficult terrain. The upper adapts very well to the foot and provides high comfort. The Toe Protect reinforcement protects the toes from hitting stones or roots. The tread studs ensure good grip on the terrain, facilitate uphill and downhill running and prevent skidding. The innovative FuelCell foam used in the midsole ensures a high level of amortization when hitting a hard surface. Specification: - Weight: 213.5 g - 6 mm drop - Lace-up binding Technologies: FuelCell - innovative lightweight cushioning foam with high resistance to deformation. Thanks to the suitable structure, it provides softness as well as appropriate protection of the joints during longer training sessions. Toe Protect - additional protection protecting the fingers from injuries during running. New Balance FuelCell Summit Unknown v4 MTUNKNW4