Whether the ocean has called to you for years or you just love the idea of becoming a mermaid, our Ocean Deep mermaid tail and monofin set is the perfect option for you. With its dark blue coloring and green shimmer, this realistic set offers everything you need to transform into a mermaid who can truly swim with fins. Simply choose your size in our Ocean Deep mermaid tail and monofin set and we will do the rest as far as choosing the monofin size. By purchasing the tail and fin set, you are saving money while making all your mermaid dreams come true. New Mer-Shield Coating protects mermaid tails from wear and holes. Superior design, comfort, and control have earned our monofins two patents. Child sizes M - XL will come with a Keiki sized fin. Teen/adult sizes JS - JL will come with a Nunui sized fin.