I have observed this as well. The latest style cover for the 26 seems to be made of different material than previous covers Ive purchased. Ive found in the warmer months it isn't as noticeable but in the winter, the material was very brittle. The newer style is a darker shade of black, thinner, and shinier than the older style which was a duller slightly grey color and felt a bit thicker and more pliable. Im not sure if this applies to all other kettle covers but its good to hear Weber may come out with something new.