Performance Tracksuit Pants
Product Information
The innovative, wrinkle-free material offers wind protection while remaining comfortably breathable. Take it straight from your gym bag and throw it on – ready for whatever comes next.
Whether worn as a set with the matching Tracksuit Jacket or on its own: its clean silhouette and technical aesthetic make it versatile in any setting.
Elastic cuffs, an adjustable hem, and reflective details complete the functional finish.
Technology, comfort, and style – distilled to the essentials.
Material and Care
Materials
100% Polyester
Care instructions
Machine wash cold
Wash with similar colors
Do not bleach
Do not use fabric softener
Do not tumble dry
Iron at low temperature
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
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.
Complete your look
Discover more
