B601RP UltraFlex

Keis B601RP UltraFlex Heated Vest – ultra-thin, flexible & powerful heat for the upper body

The Keis B601RP UltraFlex heated vest is a powerful, slim, and flexible heated vest. It fills the gap between the especially warm Keis jackets and outdoor vests. Essentially, it is a sleeveless heated jacket – lightweight, slim, and perfect for anyone who wants to heat only the torso, back, and neck. The heating elements on the chest, back, and collar are identical to those of the heated jacket J601RP.

Made from the same flexible and lightweight material as the J601RP, the vest offers full heating power with maximum freedom of movement. Thanks to its ultra-thin cut, it fits easily under fitted leather and textile jackets.

With a heating power of 41 W and targeted heating zones on the chest, back, and collar, it provides intense warmth while remaining thin and flexible enough to be worn comfortably under tight motorcycle jackets – ideal for roadsters or sport bikes.

🔥 Heat & comfort

• Heating power 41 W (3.4 A) – perfect for cold outings without overheating
• Heating zones : chest, back & collar
• Carbon microfiber heating elements – uniform far infrared heat without hot spots
• UltraFlex fabric with 4-way stretch – fits perfectly without restricting movement
• Lightweight, breathable & moisture-wicking – dry comfort even on long rides
• Midlayer design – replaces warm sweaters or fleece vests
• Practical pockets : cable compartment, pocket for temperature controller, and outer pockets suitable for everyday use

⚡ Power supply – Dual Power system

The B601RP can be powered in different ways:

• Directly via the vehicle's 12V battery (cable included)
• With optional Keis lithium batteries 5A (sold separately, stored in the inner pocket)

Technical specifications:

• Heating power: 41 W
• Electric consumption: 3.4 A
• Voltage: 12 V

Additionally, the B601RP has integrated connectors for:

• Keis heated gloves (via connection cable from the vest)
• Keis heated pants, socks, or insoles

🎯 Application area

• For touring motorcyclists, commuters & sport bike riders who need maximum freedom of movement
• Ideal under tight motorcycle jackets or for riders who want to heat specifically the upper body
• Temperature range: from autumn to deep winter

📦 Delivery contents

• 1 × Keis B601RP heated vest
• 1 × connection cable for vehicle 12V battery
• 1 × temperature controller
• 1 × user manual

📌 Conclusion

The Keis B601RP UltraFlex heated vest is the perfect choice for riders looking for a thin, flexible, and high-performance heated vest. With a heating power of 41 W, UltraFlex material, and integrated connectors for other Keis garments, it is a high-performance and comfortable midlayer for every ride.

👉 Discover the B601RP now – maximum freedom of movement with powerful heat!

All technical information and demonstration videos regarding connection, power supply, and heating of our jackets and this vest are detailed here.

CHOOSE YOUR SIZE

Choose your usual size from the dropdown menu next to the blue "Add to cart" button. If in doubt, you can also measure your chest circumference and choose your size from the table below.

If you hesitate between two sizes, we recommend choosing the larger one. For example, if your chest circumference is 103 cm, choose the jacket size 105 cm, i.e. M.

FREE SIZE EXCHANGE

If the received size does not fit you, it is of course possible to exchange it for free. Send us an email and we will send you the procedure to print a return label and drop off the package at a relay point near you. After receipt and inspection, we will send you the new size free of charge.