Who Are We?
THE CREATION
Series XI was established in mid 2025 in London, and just one month later, we released our Pre - Arrival collection. To our delight, the first collection got many orders within weeks, signalling a promising start. Following this success, we recognised our potential to make a significant impact not only in the British fitness industry but also globally.
Now, with multiple collections, we're proud to present our largest and most diverse range yet. From compression t-shirts to comfortable rest day clothes. We're incredibly excited to share our future collections with you and express our heartfelt gratitude to all our clients for their unwavering support. Even those who simply like and comment on our posts contribute significantly, and for that, we thank you.
While the future remains uncertain, one thing is clear-we're committed to giving our all, drop after drop, to ensure the satisfaction of each and every one of our clients and supporters. The rest, as they say, is history.
BRAND MESSAGE
Discipline is identity. Precision is power. Series XI is built for those who train with purpose and live without compromise.
We design performance apparel for individuals who hold themselves to a higher standard—athletes, creators, and leaders who understand that every rep, every set, every detail adds up. Our products are minimalist in style but engineered with intent—because looking sharp is nothing without moving sharp.
At Series XI, we believe in consistency over hype, form over flash, and legacy over noise. This isn’t just activewear. This is your uniform for the work that matters.
SERIES XI