Standard Type : Warmthru G4 Rechargeable Fingerheater Gloves with Two Heat Elements per glove. Bike, Ski, Walk, Climb (Medium) Windproof and Waterproof. Two Elements per glove, top of fingers and palm Two Li-ion batteries capability per glove (one battery only per glove supplied with 'Standard') Tough rubber palm fabric for better grip. Hidden velcro battery pockets replace previous zippers If you suffer from cold extremities or circulation difficulties such as RAYNAUDS, try these amazing Warmthru Fingerheated Gloves.