These neoprene Roka Buoyancy Shorts have never been worn, but no longer have the tags. Size small. originally purchased for $135. Roka describes these as "The SIM is the first practical triathlon and swim training tool to mimic the body position and experience of a wetsuit swim by lifting you up — without overheating from wearing a wetsuit in an 80°F pool. This patent-pending suit is a game changer. It's better than a pull buoy, because it lets you kick and turn naturally. It's also gives just a touch of warmth for those cold morning workouts."