Store terms

The useful fine print.

Purchases are completed through the linked Proof & Particle Etsy shop. Current prices, availability, shipping estimates, returns, and production times are presented in the Etsy listing used at checkout.

Products are made to order. Customers should review the garment description and size guide before purchasing. If an item arrives damaged, misprinted, or incorrect, photographs may be requested so the order can be reviewed and corrected.

Original artwork and brand materials are owned by Proof & Particle unless a source note expressly states otherwise. Scientific facts, equations, and historical references remain facts and are not claimed as proprietary.