The E-Glove 4 is our fourth generation of heated cycling glove. This new version is waterproof via a Polymax waterproof membrane. The heating wire has been redesigned to pass under the fingers for better heating. The cuff has been lengthened and widened and its zip reinforced. The iR-Warm heating circuit, controlled by a microprocessor, allows to thermoregulate the temperature inside the glove and to gain autonomy. Numerous tests have been carried out with the Armed Forces Biomedical Research Institute in order to test and validate the integration of the system. The E-Glove 4 integrates a battery indicator to help you better manage the use of the 3 heating levels. In addition to its heating system, the E-Glove 4 combines softshell and clarino to offer exceptional comfort. Its more modern design gives it a stylish and elegant look. The E-Glove 4 keeps all the options present on the E-Glove 3, so you will find: The R-Warm system to thermoregulate the heating with 3 heating levels The waterproof Polymax membrane The microfiber sponge on the thumb The non-slip silicone bands Zip closure Reflective elements The tactile index The E-Glove 4 also has a great novelty: a single button on the right hand to control the two gloves via a Bluetooth connection. This innovation saves space, less handling and more simplicity. Also, this button has been raised, so it is more visible and easier to access when wearing the jacket over the glove. For extreme cold, we recommend that you combine this product with a ceramic or silk underglove. Note: We recommend that you recharge your batteries regularly (at least once every 2-3 months). Features: Outer fabric: Water-repellent fabric Palm: Clarino Insulation: Fiberfill Waterproof: Polymax Zip closure & Reflective elements Specifications: Secondary color: Black Sizing: Regular A Kind: Mixed Age: Adult Type of glove: Heated Gloves Reference: EGlove4 EU Includes: European charger and battery included