Featuring a lightweight, waterproof upper, an anatomically designed, responsive EVA midsole with an auxetic sidewall, and an innovative sawtooth traction pattern, the G/FORE MG4+ O2 fuses technical performance with lightweight comfort and versatility. As with all G/FORE shoes, the signature triple-density, 3D-molded insole with massaging nubs provides immense comfort while creating additional airflow to the foot. G/FORE MG4+ O2 Golf Shoes Feature: Lightweight, waterproof performance T.P.U. upper for protection and durability Strategically positioned foam interior with a padded tongue for out-of-the-box comfort Washable and removable anti-microbial triple-density foam cushioned footbed with massaging nubs offers the ultimate comfort Anatomically designed, responsive EVA midsole with auxetic sidewall delivers all-day cushioning and comfort Breathable performance mesh lining with odor control benefits Molded external heel counter provides locked-in stability and support Innovative outsole with a heel-to-toe sawtooth traction pattern combines excellent on-course traction and flexibility with wear-anywhere versatility Style Number: GMF000150 Narrow Fit, If You Are Between Sizes, Recommend Ordering Up 1-Year Limited Waterproof Warranty Authorized G/FORE Retailer Buy G4 MG4 Plus Golf Shoes