Beach shoppers don’t baby their bags. Sun, salt, sand, sunscreen, and the occasional drench are part of the deal. If your raffia tote uses a recycled PP (rPP) lining, you need a durability program that’s auditable in the factory and credible to buyers—without requiring a full-blown lab. This guide lays out a practical, custom in-house matrix centered on the highest‑risk failure mode: handle pull‑out and elongation at the attachment points. You’ll also get reproducible parameters, clear pass/fail thresholds, and sourcing pointers aligned to public testing practices.