Nalgene products have a lifetime warranty for manufacturing defects such as leaking/cracked/broken bottles and lids.
If you purchased your Nalgene product from our webstore, please email us at email@example.com with your order number and issue as well as any photos you have of the defective product.
If you purchased your Nalgene elsewhere, please return the bottle to the retailer you purchased it from. If this isn't practical you can fill out the warranty replacement form at https://nalgene.com/
Click on the drop box and select US/Canada Warranty/ Replacements.