Cyborg Season' 25 T-Shirt Vintage Grey
Product Information
The Cyborg Season’25 T-shirt is a tribute to Arda Saatçi’s greatest challenge: the 3,000 km ultra-marathon across Japan. 1.5 marathons. Every day. Every obstacle, every step was a triumph of the mind over the impossible.
This T-shirt embodies the unshakable will to push beyond limits and rise to the challenge – day after day. Wear it as a symbol of strength, endurance, and the courage to leave your comfort zone – in every workout, in every moment.
This T-shirt is strictly limited and will not be restocked – a collector’s item that captures the story of Cyborg Seaso’25 forever.
Material and Care
Material
100% COTTON
Care instructions
Machine wash cold
Wash inside out
Wash with like colors
Do not use softeners
Do not bleach
Do not tumble dry
Iron low heat
Do not dry clean
Shipping & Returns
Shipping:
We work with top-tier shipping partners worldwide to ensure fast and secure delivery.
Shipping costs are calculated at checkout.
– Shipping to Germany is free for orders over €150.
– Shipping to Austria and Switzerland is free for orders over €200.
– Shipping to other European countries is free for orders over €300.
– Shipping to non-European countries is free for orders over €350.
Returns:
You can return your items within 14 days of receiving your order.
Return shipping costs €4.99 and will be deducted from your refund.
Returns can easily be registered through our returns and tracking portal:
https://day-1.com/pages/tracking
Cyborg Season'25
As founders, we live and breathe what day one stands for. To show what the body and mind are truly capable of, I took on the toughest challenge of my life: 3,000 kilometers across all of Japan.
1.5 to 2 marathons. Every. Single. Day.
The Cyborg Season ’25 T-shirt is a limited edition. A tribute to my run across Japan – 3,000 kilometers of pure willpower. A piece that stands as a testament to what’s possible when you refuse to set limits.
day one is not just a brand — it’s a mindset.
Built on belief and obsession, we design high-performance apparel for those who live by the same code — those who choose to show up, no matter what.
Every piece is forged in the real world: tested under the harshest conditions — from ultramarathons to relentless hours in the gym.
Our design language is clean, minimal, and functional — with every cut, seam, and fabric choice serving a purpose. No distractions. No unnecessary details. Just timeless silhouettes engineered to move with you, feel premium on skin, and perform under pressure.
We use only the highest-grade materials, selected for durability, comfort, and precision fit. From the stitching to the packaging, every detail is refined to meet the highest standards.
Built for Performance
Premium Quality Fabrics.
Engineered for Movement & Endurance.
Battle-Tested by Professional Athletes.
Timeless design. Maximum purpose.
Discipline. Vision. Obsession.
May our day one performance attire serve as a call — to embrace every challenge you face, and to push your boundaries to a new level.
We, as founders, live and breathe what day one stands for. To show what the human body and mind are capable of, Arda took on the hardest challenge of his life: running a 3,000 km ultramarathon from Berlin to New York. And now — he’s doing it again. Running another 3,000 km through Japan. 1.5 to 2 marathons every single day.
Why? To embrace new limits. To show what’s possible. And to battle test the collection we’re sharing with you.
We didn’t just design this collection. We forged it. Kilometer by kilometer. Gym session by gym session. Every single piece has been pushed to the edge — under the most brutal conditions imaginable.
So when it lands on your doorstep — when you unpack it, wear it, move in it —you know it’s real.
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