These look very nice. However, I am concerned, as There are discrepancies between the description on the website and those in the instructions that came in the box. According to the specifications, these chairs are weather resistant and rust proof, and are designed to stand up to harsh sunshine and windy rainstorms. While in the instructions provided inside the box, they indicate that with extended sun exposure and moisture, the Acacia can experience some cracking or color fading, and they recommend covering the chairs when not in use. Well, which is it Weather resistant or not