The fins are the bottom matching half to the Hip Fins available, but they add even more flow and flare to a tail to create that maximum effect of realism. They also help conceal your heels when in the tail.
"As a professional mermaid, I was extremely impressed wIth MerrowFins. Matt was able to realize my vision in a way that exceeded my expectations! It is refreshing to find a tail maker that truly cares about his clients, and throws passion into each and every project. Super talented, and high quality! I love my new tail, and this is the first of many that I will be purchasing from Matt!" - Heather Blackall