The KLIM Aggressor eFire Shirt is a groundbreaking heated base layer designed for adventurous riders who refuse to let cold weather stop them. Specifically engineered to work seamlessly with KLIM mid-layers and outerwear, this shirt provides unmatched comfort and reliable warmth in demanding conditions. With integrated heating panels across the chest and back, you’ll experience consistent heat where you need it most, so you can stay focused on the ride.
Built from a durable poly-spandex blend, the eFire Shirt features a gridded fabric design that traps warmth while remaining lightweight and flexible. The fabric is breathable, moisture-wicking, fast-drying, and antimicrobial, keeping you fresh and comfortable throughout long rides. Flat seams and strategic underarm gussets enhance mobility while reducing bulk, making it the ideal foundation for your layered riding gear. The convertible cuff design allows you to wear it with or without thumbholes for extra stability under your jacket.
The innovative eFire heating system offers three adjustable modes – low, medium, and high – all controlled via an illuminated touch button on the chest. The USB-C rechargeable battery delivers up to 8 hours of warmth on low, and with its dedicated battery pocket and internal wire routing, it’s designed for maximum convenience and comfort. A clear LED battery indicator and included USB-C cable make charging simple, while the system is both washer and dryer safe (with the battery removed).
Whether you’re tackling icy mountain roads, enduring long-distance winter touring, or simply want reliable warmth on every cold-weather ride, the KLIM Aggressor eFire Shirt ensures you stay protected against the chill. Ride longer, stay warmer, and enjoy every adventure with confidence.
