Speedo Womens Hydro Comfort 2.0 Water Sneaker (Black, 6) Side ports for additional water drainage. Silicon printed laces for an optimal fit. Stretch collar allows easy on/off. Dual Density Speedo Foam provides long-lasting comfort and shock absorption. Hydrotreadd rubber outsole disperses water and improves traction and durability. 360 ventilation for maximum breathability.