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Our Story

When we, Isa (18) and Danine (20), wanted to combine our passion for fitness with our dream to create something special, Strengthen was born. What started as a spontaneous idea during our own workouts, grew into a brand with a clear mission: letting you work out in outfits that make you feel strong, stylish and confident.

We believe that sportswear is more than just functional – it’s an extension of your strength and personality. That’s why we design with love and care, so that each collection perfectly matches your needs and style. Whether you’re doing a tough workout or just having a comfortable day, we want you to feel your best in our clothes.

At Strengthen, everything revolves around you. From the first design to the moment your package is delivered, we make you feel special. Together we make your sports moments even more beautiful and powerful.

Love, Isa & Danine

Free shipping from €75

Easy returns

Fast customer service

4.7 Trustpilot rating

Strengthen

Strengthen was founded in 2022 by two enthusiastic girls with a passion for fitness. Our goal is to bring affordability and quality together so that everyone can exercise in a beautiful outfit!

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