As Featured on the Science Channel, WSJ, CNN, and Yahoo

KULER® X-Ray: The World's First Color-Changing Sportswear Shirt

🚨 Original Prototype Release (Only 10 will Ever be Made)-Reserve Your Size Today

Secure yours today — ships Holiday 2025. Backed by $579K in crowdfunding and trusted by thousands.

Command attention and elevate your performance with the KULER® X-Ray Shirt, a Limited Edition statement in wearable technology. Designed for the bold, this next-gen shirt features KULER’s signature color-change tech that shifts from deep purple to vibrant neon blue as your body temperature rises. As you push your limits, a futuristic skeleton design etched with our iconic logo is revealed — a raw visual of your intensity in motion.

Built for athletes who thrive under pressure, this shirt combines style, science, and scarcity. With only 10 units available in this colorway and no plans for reproduction for at least 3 years (or ever), this drop is a collector’s performance piece. No wires. No batteries. Just your drive.

Key Features

• Color-Shift Technology: Reacts to heat, transitioning from purple to neon blue.
• Skeleton + Logo Reveal: Anatomically inspired design emerges with physical effort.
• Integrated Knitted Power Meter: Visually displays workout intensity in real time.
• Ventilation-Engineered Panels: Keeps airflow optimized through every rep.
• Limited Edition: Only 10 units — once it’s gone, it’s gone.
• Battery-Free & Washable: Fully machine washable and dryer-safe.

⚠️ Note: Hot external environments may cause early color activation.

❌ Not available for shipping to Pennsylvania.