About JAMS by Jillian

JAMS by Jillian is a newly founded Miami Beach based swimwear brand inspired by the vibrant colors and patterns of South Beach. JAMS by Jillian’s eclectic and unconventional collections are designed for the modern and creative soul who dares to experiment with fashion by incorporating contemporary shapes, intense colors with a fusion of innocence and seductiveness.

Launched and debuted during DC Swim Week 2020, JAMS by Jillian features a variety of styles, all made in the United States and created by Mangi. 

Her latest collection is The 3AM Collection which is inspired by the nightlife, club vibes and dating culture prominent throughout Miami Beach. “I designed prints that were inspired by strobe lights from clubs and concerts– in fact, this new swimwear collection will feature a glow-in-the-dark effect when in blacklight. I focused on three distinct colors– lilac, hot pink and yellow for this new collection.

Jillian Mangi, a New York native, moved to Miami in 2014, where she discovered her passion for swimwear design and philanthropy. Combining both of her passions, Mangi created her swimwear line, and made the decision to donate $2 of every bathing suit purchased to further women’s education and future. The non-profit organizations that JAMS by Jillian is currently partnered with are: PERIOD, She’s The First, and One Love.

Mission & Values

$2 of every bathing suit purchased will be donated to further women’s education and future. JAMS by Jillian supplements a women’s confidence and encourages community involvement. The goal is to make confident women, empowered women by giving 2 for 1. The non-profit organizations that JAMS by Jillian is currently partnered with are: PERIOD, She’s The First, and One Love.

period movement

PERIOD is a global, youth-fueled non-profit working to end period poverty and period stigma through service, education and advocacy — and includes the distribution of menstrual products to local communities worldwide.


she's the first

 Our vision is a world where every girl chooses her own future.


Because in too many places around the world, girls are treated as second to the boys. They are denied an education, told who and when to marry, and blocked from leadership. Educated and respected girls are the exception, not the norm.

This is why She’s the First takes a holistic approach to our work.

We find, fund, and support solutions that not only educate and empower girls but also build up the communities where they are able to flourish. 



 Love is the most important thing in our lives, yet we are taught very little about it. One Love is on a mission to change that. We educate young people about healthy and unhealthy relationships, empowering them to identify and avoid abuse and learn how to love better.