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Meet Tommie

Over 30 years ago I fell in love with the art of sewing. What inspired me the most was that you could turn a piece of fabric into “art you could wear”. I started to draw and sew with commercial patterns when I was eight years old. 

That and many other fashion experiences inspired me to create Sirena Patterns.

Mi first trip to New York City in 1982, right after taking my first sewing lessons, changed my life forever.

I wore an outfit that I sew by myself, I was so proud of it! And after just spending a few hours in the big apple I decided that I would live there one day… and so I did.

Tommie as a student at F.I.T.

Her History

Fifteen years later I arrived at F.I.T. and I studied fashion design in Manhattan. I worked and learned with fabulous people who inspired me to open my own business.

As a fashion designer, I have presented collections locally and internationally in USA, Dominican Republic, Panamá, among others. I designed the official swimsuits for Nuestra Belleza Latina 2012, and in numerous occasions in Miss Universe PR, Miss World PR, and Miss PR Teen.

I founded Sirena Patterns, the only Puerto-Rican sewing pattern company sold in 49 countries and we teach over 1,900 students in our online academy.

The Dream

Sirena Patterns is a dream come true. Technology has given me the power to help people all over the world by teaching them sewing skills, and fashion and entrepreneurship. We are a distance learning business with digital formatted patterns and global reach, teaching our clients not only sewing skills but fashion design and entrepreneurship. With these skills they can not only enjoy a satisfying hobby but have the tools to create a successful business.

In Sirena Elite we give people who want keep learning access to a free pattern a month, new tutorials on sewing and crafting, discounts on craft stores, a private community and more. I believe in the wonderful therapy of creating with your hands. This membership experience is currently available in Spanish.

Tommie launching her Sirena line

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The Journey

The trajectory of Sirena Patterns and Tommie Hernandez throughout the years



Tommie started to sew

“I used to read the patterns instructions over and over fascinated by the illustrations and the process. Cutting the pieces, positioning them over the fabric and finally turning that puzzle into a wardrobe piece you could wear.”



She graduates in Fashion Design from F.I.T. New York

It is with this achievement that she establishes her boutique/atelier where she made tailored garments.



Launches her swimwear line which she sells to boutiques and stores, like JC Penny



Presents her first fashion line at the Puerto Rico High Fashion Week


Combines her passion of fashion design, sewing and educating and starts teaching design and sewing classes



Obtains an MBA from PUCPR with specialization in marketing



Sirena Patterns, the only Puerto-Rican sewing patterns company is established and she launches her first pattern



Tommie launches her bilingual online fashion academy



Sirena Elite is launched

Here she is creating courses that have been seen by students in 20 countries

Meet the team

Meet our specialized and highly skilled team, we know about design & sewing…  and we are passionate about it.


Tommie Hernandez

CEO & Designer
Karilian Lopez

Karilian López

Assistant Designer
Viviana de Jesus

Viviana de Jesus

Sr. Content Manager
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