Welcome at Mermaid Kat Shop
Mermaid tails for everyone – Welcome at Mermaid Kat Shop. This online mermaid shop opened in April 2013 by Mermaid Kat, who is a professional mermaid and underwater stunt model from Germany. In this mermaid shop you can find mermaid tails for children and adults. Check out our high quality fabric and silicone mermaid tails for swimming, as well as other equipment, costumes and "mer"chandise. We hope you enjoy your time at Mermaid Kat Shop.
Check out our Mermaid Fabric Mermaid Tails
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Fabric Mermaid Tails (with Monofin)
- Regular price
- from $149.00
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- from $149.00
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Mermaid Tail Sets (Monofin, Bikini and Tail Skin)
- Regular price
- from $169.00
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- from $169.00
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Mermaid Tail Skin (No Monofin)
- Regular price
- from $79.00
- Sale price
- from $79.00
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Silicone Tails
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Silicone Tails for Mermaids and Mermen - Custom made!!!
- Regular price
- $1,950.00
- Sale price
- $1,950.00
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Take-Away Silicone Mermaid Tail - Custom made!!!
- Regular price
- $1,850.00
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- $1,850.00
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International MerPeople Retreats and Underwater Modelling Workshops
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Mexico MerPeople Retreat and Mermaid School (March 2025)
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MerPeople Vacation Maldives (September 2025)
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Merfolk Holiday and Mermaid School Egypt (September 2024)
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Underwater Dance and Modelling Retreat Egypt (September 2024)
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Mermaid Retreat Thailand (April/ May 2024)
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Mermaid School and Underwater Modelling Retreat - Egypt September 2023
Mermaid Kat Merchandise
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Case with Mermaid Photo of "Mermaid Kat"
- Regular price
- $26.99
- Sale price
- $26.99
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Mousepad with Mermaid and Shark
- Regular price
- $195.00
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- $195.00
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Bookmark with Mermaid - Mermaid Kat
- Regular price
- $16.99
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- $16.99
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Pillow with the real mermaid "Mermaid Kat"
- Regular price
- $35.99
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- $35.99
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Cotton Tote Bag with Mermaid Picture
- Regular price
- $24.99
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- $24.99
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Puzzle with the real mermaid "Mermaid Kat"
- Regular price
- $29.99
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- $29.99
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Mermaid Keychain - Mermaid Kat
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- $25.99
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- $25.99
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Autograph Card Mermaid Kat
- Regular price
- $0.00
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- $0.00
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Testimonials
Silicone Tops
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Self Sticking Mermaid Bra
- Regular price
- $500.00
- Sale price
- $500.00
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Corset Silicone Mermaid Top
- Regular price
- $750.00
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- $750.00
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Find out More

Who is Mermaid Kat?
Katrin Gray, aka Mermaid Kat, is a professional mermaid, scuba instructor, freediver and underwater stuntwoman. In her twenties, the former beauty queen from Germany turned her childhood dream into reality and became a mermaid performer. As an ocean activist she swims with marine life such as dolphins, whales, rays, sharks and even crocodiles.
Mermaid Tail Collections
We make your mermaid dreams turn into reality. Become an enchanting mermaid or mythical merman. With our mermaid tails you can now discover the underwater world like never before. If you can dream it, you can do it - and we will help you! Helping you to make your dreams come to life is what we live for. Check out our mermaid tail collections.

Quality, Safety & Experience
Here at Mermaid Kat Shop, we are water professionals such as scuba diving instructors, freedivers, engineers and underwater stunt performers. With the combination of our skillsets and experience, we were able to develop highly functional and efficient mermaid tails and monofins. Mermaiding is now accessible and safe for all experienced swimmers worldwide.