NA Imported Rubber sole There's no taming the high performance and exceptional response of the Brooks® Beast '18 running shoe! Predecessor: Beast 16. Support Type: Overpronation/Stability. Cushioning: Maximum cushioning. Surface: Road. Differential: 12 mm. Built for the sever overpronator who requires motion control and high-level cushioning. Moisture-managing Element mesh upper supplies protection from various elements, while maintaining a cool in-shoe environment. External, structured saddle allows for adjustable support. Lace-up closure. External heel counter helps stabilize the foot. Plush tongue and collar. Element mesh lining wicks moisture away, and offers a great in-shoe feel. Removable sockliner.