Subgear by Scubapro 2mm Comfort Neoprene Fin Socks Subgear socks are great for more warmth with boots or for use with Free Diving or Snorlkelling fins Provide a broad surface area for your legs to push against Socks are made from 2mm neoprene anatomically shaped and come with a non slip sole Significant Thermal Protection for Sensitive Feet