The lightweight, responsive, and supportive style of the Brooks Ariel 18 running shoe will have you ready to run your best every day! Predecessor: Ariel 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. Engineered mesh and synthetic upper for a soft, flexible feel and excellent breathability. Updated foot last provides added a roomier forefoot area for a more comfortable fit. External, structured saddle allows for adjustable support. Lace-up closure. External heel counter helps stabilize the foot. Plush tongue and collar. Breathable mesh lining wicks away moisture and offers a great in-shoe feel. Removable sockliner provides added underfoot support and cushioning. Super DNA midsole delivers enhanced energy return underfoot support, and added cushioning. 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: 11.8 oz Product measurements were taken using size 7.5, width EE - Extra Wide. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.