Reactive Flow Singlet: Ultralight Race Singlet for Hot Running Days

Whether you're running fast intervals, starting a race or training on hot summer days - the Reactive Flow Singlet keeps you light, cool and fully focused on your performance. This technical running singlet is designed for maximum speed and comfort when the temperatures rise.

With an ultralight design and racer-back construction, this singlet offers full freedom of movement and optimal ventilation during intense runs.

Ultralight Design for Maximum Speed

The singlet is designed to feel as light as possible while running. This allows you to move freely without distraction, even during fast-paced races.

• Ultralight material for a race-ready feel
• Designed for fast workouts and races
• Made from 79% recycled polyester

Racer-Back Construction for Freedom of Movement.

Sporty racer-back fit allows your shoulders to move completely freely while running.

• Racer-back design for maximum freedom of movement
• Large armholes for extra ventilation
• Reduces risk of chafing during intense runs

Quick-drying Comfort with SAYSKYDRY Technology

The technical fabric wicks away moisture quickly and dries exceptionally fast, keeping you cool and comfortable during hot conditions.

• SAYSKYDRY technology for effective moisture management
• Quick-drying fabric for long-lasting comfort
• Keeps you cool during intense workouts

Comfort and Visibility while Running

Soft material and smart details keep you comfortable and visible during your run.

• Soft finish for anti-chafe comfort
• Reflective logos for added visibility
• Precision fit for performance at race pace

Why choose the Reactive Flow Singlet?

The Reactive Flow Singlet is designed for runners looking for an ultralight and breathable singlet for warm conditions and fast runs.

• Ultra-lightweight design for maximum performance
• Racer-back fit for full freedom of movement
• SAYSKYDRY technology for quick-drying comfort
• Large armholes for ventilation and reduced chafing
• Reflective details for added visibility