It could be said that if you're not training in open water, you're not winning. We tend to agree with this, and so does Blueseventy. So, to ensure that you're able to train in cold water temperatures, Blueseventy created its Swim Socks. These socks feature a neoprene construction that insulates against the cold during your swim. This characteristic has been furthered through the socks' high cuff. By cutting it high, Blueseventy ensured that less water will infiltrate the socks' insulation layer, keeping you warmer for longer. And in addition to keeping you warm, the neoprene's thickness and conforming fit will also protect your feet from rocks during either transitions or entry to the water. The Blueseventy Swim Socks are available in the color Black and in the sizes Small and Large.