Celebrate 18 years of dynamic, cushioned comfort by taking a ride in the ASICS Gel-Cumulus 18 running shoe! ; Successor to the Gel-Cumulus 17. ; Support Type: Neutral to underpronation (supination). ; Cushioning: High energizing cushioning. ; Surface: Road. ; Differential: 10 mm. ; Limited edition Blue Ribbon upper is specially designed to help raise awareness of prostate cancer. From August 1 through November 30, 2016, ASICS will donate $10 for each pair purchased to the Prostate Cancer Foundation (with a guaranteed minimum donation of $100,000). ; Fit Tip: Per the brand, we recommend ordering a half size larger than your usual size. ; Breathable mesh and synthetic upper materials. ; Seamless upper construction reduces the likelihood of friction-related irritation. ; Lace-up closure. ; Discrete eyelets disburse lace tension for optimal comfort. ; Padded tongue and collar. ; Soft textile lining. ; Removable ComforDry sockliner features anti-odor properties for a cooler, drier in-shoe feel. ; FluidRide midsole provides just the right balance of bounce back, cushioning, and lasting wear in a lightweight package. ; I.G.S (Impact Guidance System) employs linked componentry to enhance the foot's natural gait from heel strike through toe-off. ; Rearfoot and Forefoot Gel systems work together to reduce impacting shock and allow movement in multiple planes from heel strike through toe-off. ; Heel/Toe: 23 mm/13 mm. ; DURASPONGE rubber outsole for greater cushioning and durability in the forefoot. ; Guidance Trusstic System integrates Guidance Line for heightened stride efficiency that doesn't interfere with mid-foot structural integrity. ; Guidance Line vertical flex groove decouples the tooling along the line of progression for a smoother ride. ; Imported. Measurements: ; Weight: 12 oz ; Product measurements were taken using size 10, width D - Medium. Please note that measurements may vary by size.