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Lady B501W

Lady B501W

Regular price €99.00 EUR
Regular price €210.00 EUR Sale price €99.00 EUR
Sale Sold out
Tax included.

The Premium Lady B501W heated vest is technically identical to the B501WRP, with only the colors changing. It is delivered without a temperature controller, and therefore offers only one heating level (the highest). The temperature controller is available separately if desired, but is not essential.

The Premium Lady B501W heated vest is a discontinued product, with only a few sizes left in stock. Missing sizes will not be replaced and are blocked for sale.

The Keis Lady B501W heated vest is the benchmark that sets new standards in women's heated vests. Well-suited to women's morphology and available in a wide range of sizes, this vest will keep you toasty warm during all your outdoor activities: winter hikes or horseback rides, outings to the stadium or Christmas market, or even ski trips!

This vest is designed to be vehicle-independent, and therefore powered by one of our Keis lithium Li-ion batteries: either the large 5.2A battery, or the small pair of 4A batteries.

All technical information and demonstration videos concerning the connection, power supply and heating of our vests are detailed here.


  • women's cut
  • fine, breathable fabric
  • elastic Spandex side panels
  • 1.2A current, 14.4W heating power, 12V voltage
  • patented Keis heat generation system
  • 4 heating panels with lifetime warranty: back, torso and collar
  • carbon micro-fibres for heat distribution
  • mid-layer, replaces all sweaters and fleeces
  • two outside pockets
  • integrated connectors for Keis gloves, tights and heated socks
  • Keis battery power supply available separately
  • motorcycle battery connection cable included


  • 1 Lady B501W heated vest
  • 1 cable for connection to 12V vehicle battery
  • instructions in English


Choose your usual size from the drop-down menu next to the blue "Add to basket" button. If in doubt, you can also measure your torso/chest circumference and choose your size from the table below.

If you're not sure between two sizes, we recommend taking the larger one.


If the size you receive doesn't fit, you can of course exchange it free of charge. Just send us an e-mail and we'll send you the procedure for printing out a returns slip and dropping off the parcel at a delivery point near you. After receiving and checking your order, we will send you the new size free of charge, subject to availability of course.
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