Design: Synthetic and neoprene upper with strategic cutouts offer flexibility, comfort, and breathability Gusseted neoprene construction creates a secure lockdown and reduces friction while wet Quick-lace system allows for easy adjustability and lace storage Weight: 12 oz. Heel to toe drop: 5 mm. In-Shoe Comfort: Neoprene collar provides added comfort Rubberized EVA midsole creates a responsive and cushioned feel A symmetrical low-profile cushion bed keeps your foot closer to the ground to allow for a more efficient push-off Durability & Traction: A sticky rubber outsole creates traction on a variety of terrain Broad lug pattern with grooving provides additional grip when wet Rubberized toe cap provides optimal protection against debris and rough footing