Mid-size isn’t in-between. It’s the blueprint.
A female-founded brand, designed with intention.
Millions of women live between standard clothing sizes—and are consistently left out of the fashion conversation. SISU changes that. With intentional sizing, functional design, and elegant construction, we serve the women too often ignored by traditional fit systems.
At SISU, we start where others overlook: the mid-size body. Our garments are engineered from the ground up—not scaled or adjusted—to honor your proportions and support your life in motion. No shortcuts. No compromises. Just high-function, high-style essentials made to move with you, reflect your presence, and redefine what it means to fit in—by standing out.
Why SISU Was Created
Driven by the desire to simplify the choices available to ambitious women, we set out to craft pivotal pieces in women's apparel—essentials that effortlessly blend into casual, laid-back styles. We recognized the need for garments that work as hard as we do, providing the perfect canvas for our dynamic lives. Where the allure of style seamlessly intertwines with the practicality of functionality, creating a symphony of fashion tailored for those embracing the almost 8, 10, and 12 sizes.
Sisu goes beyond being just a brand; it's a revelation, a multi-functional wardrobe solution meticulously curated for the modern woman. This isn't merely about clothing; it's about empowering individuals who desire the perfect blend of luxury and durability in every fashion choice. Discover Sisu – your connection to a community that understands, celebrates, and elevates your journey. Because every woman deserves to feel not just stylish, but profoundly connected on her path to empowerment.
Our Intention
We begin with the shape of a woman’s body, designing with her real proportions and the way she moves through the day. Every SISU piece blends technical functionality with thoughtful, refined design. We believe in quality over quantity. Good clothing is not enough. You deserve great. Our fabrics and silhouettes are chosen to move with you and make each part of your day feel effortless.
Our Thought Process
We start with one question: who is she, and what does her day look like? We consider how she moves, what she needs, and how she wants to feel - comfortable, confident, and completely herself. SISU isn’t a cookie-cutter brand. Every collection is informed by real feedback from our community through customer conversations, focus groups, wear testing, and in-depth industry research. The result is a precise fit that honors every curve and delivers lasting support where it matters most.
Our Development
Every fabric we use is carefully selected for its quality, performance, and versatility. We prioritize materials that travel well, adapt to different parts of your day, and require minimal care, so you can focus on living, not maintaining.
How our garments are made is just as important as how they feel. Ethical sourcing and responsible manufacturing are core to every decision we make. We only work with partners who meet the following standards:
✓ Fair wages
✓ No sweatshops
✓ No discrimination
✓ No child labor
✓ WRAP certified (World Responsible Accredited Production)
Better clothing starts with better practices - thoughtfully developed, responsibly made.
Tailored for Sizes 4-16
Designed for Movement
Ethically Made in the USA
Eco-Friendly Fabrics