on saleClairefontaine Triomphe Small Envelopes

The letter/number refers to the International Standard (ISO), which is a general standard for paper sizes. The smaller the number, the larger the paper.

We've got a comprehensive article on our blog about common paper sizes.

This product may be returned if it is in new, unused condition; or if it was found to be defective.

We accept returns for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.