ON Core Long-T: Lightweight Long-Sleeve Running Shirt for Every Workout

The ON Core Long-T is the perfect long-sleeve running shirt for runners looking for comfort, versatility, and a timeless design. Thanks to its lightweight fabric, comfortable regular fit, and breathability, this shirt is ideal for crisp mornings, cooler training days, and everyday wear.

Whether you're going for a leisurely endurance run, finishing up a recovery session, or simply want to run comfortably, the Core Long-T is a reliable staple for any running wardrobe.

Lightweight Comfort for Every Kilometer

The Core Long-T is designed to move effortlessly with you.

• Lightweight material – Feels comfortable without becoming heavy or hot.
• Regular fit – Offers a relaxed fit with plenty of freedom of movement.
• Comfortable to wear – Ideal for both short workouts and long runs.

Perfect for Cooler Days

When a T-shirt is just a little too cold and a thick layer is just a little too warm, the Core Long-T offers the ideal solution.

• Long sleeves – Provide extra warmth on chilly mornings and during cooler seasons.
• Breathable fabric – Helps wick away excess heat so you can keep moving comfortably.
• Perfect for any season —wear it on its own or as a comfortable base layer under a running jacket.

Versatile and Timeless

The Core Long-T is designed to be a true all-rounder.

• Minimalist ON design – A sporty and stylish look that goes with everything.
• Timeless colors – Easy to pair with any running outfit.
• Great for both workouts and everyday use —just as comfortable after your workout as it is while you're running.

Made with Recycled Materials

In addition to comfort, sustainability is also an important part of the design.

• Recycled polyester – Lightweight, comfortable, and a more sustainable choice for every workout.

Made for Every Runner

The ON Core Long-T is ideal for:

• Daily Running Workouts
• Easy endurance runs
• Recovery Runs
• Morning and evening workouts
• Hiking
• Casual, sporty moments

Thanks to its comfortable fit and versatility, this is a shirt you'll reach for time and time again.

Why choose the ON Core Long-T?

The ON Core Long-T combines lightweight comfort, a timeless design, and versatile performance in a running shirt that's suitable for virtually any workout.

• Lightweight and comfortable material
• Regular fit for optimal freedom of movement
• Long sleeves for extra warmth on chilly days
• Breathable design for long-lasting comfort
• Made from recycled polyester
• Timeless ON design that goes with everything
• Ideal for running, walking, and everyday use
• Perfect as a standalone layer or under a running jacket