Hit the trails knowing your feet are warm, dry and supported. The adidas by Stella McCartney Outdoorboost 2.0 COLD.RDY running shoes were designed to keep you active outdoors, even when the temperatures start to drop. The perfect mix of style and function, these shoes are insulated with COLD.RDY lining to keep your feet dry and warm. The Outdoorboost trainers are set on the energy-returning Boost midsole and finished off with a grip rubber sole to keep your feet firmly on the ground as you put in the miles, come rain, hail or shine.