These chairs sit very comfortably and seem well made. I like the fact that they stack which will help with storage in the winter (we live in Wisconsin). They are wood and synthetic rattan, so not real heavy, but heavy enough that the wind should not be a problem.  The only problem was I ordered gray, and the boxes were marked gray but the wood on the chairs is brown and the rattan on the chair is a gray/brown. Wayfair was great to work with To make this right. In my experience their service has alway been exceptional, which is why I don’t hesitate to order from them. The chairs do require to be oiled before assembly. Assembly was easy.