I bought my 2 chairs 4 years ago.  I live in south florida and keep them out on my patio year round.  Part of the day sun/part of the day shade.  Just recently a slat broke on the seat (my husband is now on a diet :)  ) I called for replacement parts and was told that the slats weren't available individually, but if I paid for shipping they would send me a complete new seat bottom.  Awesome....I was not expecting that....I fully intended to purchase because I LOVE THE CHAIRS!!  Thank you so much, I without a doubt, (even if they had not sent the seat bottom) highly recommend these chairs.