NEW Nautica water aerobic shoes in a bright yellow and white trimmed grey mesh shoe. They have never been worn, as they are too big for me. I bought them as a replacement for a pair of Speedos in size 11M, however the Nautica 11M is more true to size. I normally wear a size 10M shoe. Shoe material: durable air mesh upper and rubber sole. The water grip outsole provides exceptional traction in wet and slippery conditions. Amphibious shoes are constructed with drainage holes at the shoe bottom to ensure proper water flow and drainage, and they remain a cooler and healthier shoe environment as you participate in various water sports. A convenient bungee cord adjuster for easy on/off and secure feeling in the water - no shoestrings to constantly tie! Perfect for swimming pool, beach, surfing, kayaking, boating, yoga, aerobics.