Theres 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. Super DNA midsole delivers maximum cushioning, enhanced energy return, and support. Full-length S-257 Cushsole midsole compound utilizes an insole board for increased plush and flexibility. Tuned density to fit this runners specific needs. DRB Accel shank-like unit promotes torsional rigidity in the mid-foot, while allowing the heel and forefoot to act independently. Extended Progressive Diagonal Rollbar (PDRB) presents a robust, dual density post at the medial arch allowing for progressive pronation control. Full-length Segmented Crash Pad encourages a smooth heel-to-toe transition with each step. Durable HPR Green outsole is comprised of environment-friendly silica for premium wet-dry traction and skid resistance. Abrasion-resistant HPR Plus rubber outsole provides extended durability right where its needed. Omega Flex Grooves allow for more natural forefoot movement and fluidity. Linear platform. Imported. Measurements: Weight: 14.6 oz Product measurements were taken using size 11, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.