MermaidsUK have conducted a full research project into the different types of mono fins available in the UK. This research project consisted of buying the mono fins that were currently on the market during this time period. Participants involved were approximately 200 children, 50 adults, various swimming teachers, personal trainers, sports therapists, dancers. Synchronizes swimming teachers and a physiotherpaist who tired various mono fins during this time. Throughout our ongoing research we consistently analyse the monofins and tails skins that we supply and sell to our customers. This is to insure the safety and quality of products available from MermaidsUK.