Grandoe Corporation GCS Technology: GCS Glove component system, weather-adjustable technology. Two-in-one glove -- it’s a cold day you want full and maximum warmth. You wear your liner with your shell. It’s a little warmer out and you want to adjust the temperature of your glove. You simply zip in and zip out your liner and you have a fully insulated shell for those warmer days. As I said, it’s weather adjustable technology for your hands, optimal comfort.
