More Than Maternity. A Movement.
Europe's first circular maternity fitness brand, sustainable activewear, and an Olympian-led pre and postnatal fitness platform.The Mom Hoodie is our first product: EU-made, 75% less CO₂, 98% less water, and adjustable from bump to postpartum to nursing. Science-based, sustainable, and community-first from day one.
OUR WHY
The Heart Behind RheiaFit
Motherhood deserves more than stretch pants and bounce-back pressure. RheiaFit is built on a simple belief: that mothers deserve science-based guidance, clothing that actually works for their bodies, and a community that lifts them up, not pressures them. Founded by Lisa Christina Nemec, Croatia's first female Olympic marathoner and mother of two, RheiaFit sits at the intersection of three things no brand has combined: circular sustainable activewear, an Olympian-led pre and postnatal fitness platform, and a planned manufacturing hub creating skilled jobs for women in post-war Croatia.Our hero product is The Mom Hoodie. It is adjustable for the bump, postpartum, and nursing, EU-made, and built for the long run. Next up: a nursing sports bra and maternity/postpartum leggings, both prototyped from focus group feedback with over 100 mothers.And at the heart of it all: Coffee and Core, our pre and postnatal fitness series, already live on Instagram and building the community the platform will scale.
THE SOLUTION
One brand. Three pillars. From the first trimester to forever.
Pillar 01 — The Mom Hoodie
• Adjustable for bump, postpartum and nursing
•75% less CO₂, 98% less water vs. conventional fashion
•QR-coded traceable supply chain 100% EU-made.
•Production-ready.
Pillar 02 — Fitness Platform
• Evidence-based pre and postnatal workouts
• Led by Croatia's first female marathon Olympian
• Coffee and Core series live now on Instagram
• Subscription platform launching post-funding
Pillar 03 — The Sisak Hub
• Plans for Croatia's first circular fashion manufacturing hub
• Creating jobs and skills for women in post-war Sisak
• White-label circular production for other EU brands
THE CAMPAIGN
Join the Movement. Be Part of What's Next.
RheiaFit is pre-production and funding-ready. The Mom Hoodie prototype is finalised. The manufacturer is secured. We are raising to launch production, build the fitness platform, and begin prototyping our nursing sports bra and maternity legging. If you are an investor, brand partner, or accelerator who believes in circular fashion, women's wellness, and community-driven brands, we would love to connect. Reach out to receive our investor deck, product roadmap, and impact metrics.
Join the COFFEE & CORE
PRE AND POST NATAL FITNESS
More Than Gear
A Circle of Support
The RheiaFit fitness platform is coming. Join the waitlist to be first in when it launches: Olympian-led, science-based pre and postnatal workouts built for real mothers, not bounce-back culture.While you wait, follow Coffee and Core on Instagram @Coffee&CorebyRheiaFit for free weekly pre and postnatal exercises starting now.
FROM OUR FOUNDER
The Heart Behind the Brand
BUILT FROM IMPOSSIBILITY
Hi, I'm Lisa Christina Nemec. Croatia's first female Olympic marathoner, mother of two, and founder of RheiaFIT. When they said the Olympic qualifying standard was impossible, I ran 3 minutes under it. That same approach is how I'm building this brand.During my first pregnancy I couldn't find activewear that worked, guidance that wasn't rooted in bounce-back culture, or a community that felt real. So I spent 5 years building what didn't exist. Bootstrapped with €25,000, validated by over 100 mothers across 5 focus groups, and built around a simple belief: that mothers deserve science-based support, sustainable clothing, and a community that lifts them up.RheiaFIT is not just a brand. It is a movement. And I'm not waiting for permission to build it.With love, Lisa
Move Through Motherhood With Us
The Rheia Report
Bi-weekly dispatches from an Olympian mother on moving well, living sustainably, and thriving through every stage of motherhood.Science-based. Honest. Written for real mothers. Subscribe on Substack or sign up below. Elevated fashion. Functional wellness. Powered by motherhood.
Because motherhood is a marathon. And you don’t have to run it alone.