After years of use, I noticed a crack in my Nalgene water bottle the other day. I had heard that they might replace broken bottles. Sure enough, I found the following notice on their Facebook page:
For Nalgene replacements broken during normal use, e-mail us: firstname.lastname@example.org Include your mailing address and photo of your broken item.
I followed the instructions on Friday night and received a reply on Monday morning:
I have ordered you a new 32oz wide mouth bottle in Slate Blue.
All the best,