Bestop Upper Door Sliders are a great addition to your Jeep doors. The Door Slider Kit features a pair of soft Upper Doors with unique sliding windows. These DOT-approved glass window panels "click" shut with one hand and slide open. The glass windows reduce road noise and improve the ventilation in your Jeep.Your Upper Door Sliders are built with high quality materials, includinng double-bulb weather stripping around the door channel. This weather stripping provides a secure seal to the soft top and keeps out ice, snow, debris, and dirt. The Upper Door Sliders' soft material matches your Jeep's factory soft top as well as other Bestop products like soft tops and tire covers.