Delivering long-haul comfort for long trail runs and races, the women's Caldera 7 combines premium cushioning with a durable, dynamic feel and stability over uneven terrain. Features. Supreme softness. Stable ride. Durable & dynamic. Best for: trail running. Cushion level: Most cushioning. Specifications. Weight: 9.4oz / 266.5g. Midsole drop: 6mm. Support level: Neutral Specifications Terrain Road Width Normal Drop 6 mm. Colour: black