The Kenworth T680, T880, W990 Tan Door Window Cover Set is a practical and efficient solution for insulating your truck's windows. Made with 7 quilted layers, including an aluminum radiant heat barrier, 1/4 inch foam, and 3 layers of polyester, this set provides excellent insulation. The suction cup installation makes it easy to set up in seconds, and it fits most Kenworth T680, T880, W990 models. Made in the USA, this window cover set is a reliable and effective way to keep your truck's interior comfortable and protected from extreme temperatures.