"I Against I" Prime Racing Shirt (Female)
"I Against I" Prime Racing Shirt (Female)

"I Against I" Prime Racing Shirt (Female)

Regular price €44.90 Sale price€37.90 Save 16%
Tax included. Shipping calculated at checkout.

  • Low stock - 1 item left
  • Inventory on the way
Also available as Unisex Version
  • Free shipping 60€ (Germany) 120€ (World)
  • Same-Day-Shipping for orders until 13:00h


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Superior quality Prime Racing shirt made of 100% recycled polyester. Cut for the female body. Ultra soft single jersey knit with awesome seam finishes. This is an extraordinarily comfortable textile and one of a kind in your wardrobe. That's why we call it Prime

RuN. Simple as that. Move forward, evolve and strive for being a better version of yourself tomorrow.

Female model is 1.74 and wears "Female M" (medium). This shirt is made for the feminine body. It turns out to be a little longer than your usual shirts. Most runners like this a lot. It is also available as unisex t-shirt to fit all body types


  • In cooperation with Neutral® 
  • Women Racing T-shirt (What's the difference?)
  • Female / Slightly fitted
  • 100% Recycled Polyester
  • 155 GSM (lightweight)
  • Breathable & quickly wicking
  • Crewneck
  • Flatlock seams


  • 100% certified recycled polyester
  • Oeko-Tex Standard 100
  • EU Ecolabel
  • Fairtrade / SA8000 Standards 
  • Production Facilities powered by renewable energy

    Size Chart

    1/2 Chests (A) Body Length (B)


    41 cm 62 cm
    S 44 cm 65 cm
    M 47 cm 68 cm
    L 50 cm 71 cm
    XL 53 cm 74 cm

    Shipping Rates

      • GERMANY: 3.50€ (Free Shipping over 60.00€)
      • EUROPE (EU): 6.00€ (Free Shipping over 120.00€)
      • WORLD: 18.00€ (Free Shipping over 120.00€)


      Same-Day Shipping for orders before 1:00 pm (13:00h). All other orders are being shipped within 24h.


      We really want you to be happy with your Willpower stuff. That's why you can return any item any time if it doesn't fit you or you don't like it. You will receive your money back or exchange, as you wish. No time limit. Just follow the instructions in our Returns Center.

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      For Runners With Attitude

      Why Willpower

      Willpower is a value driven running brand for proud athletes, who oppose the mainstream.

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