<h1>Legal risks from PFAS-free bio-based waterproof membrane claims: labeling, IP, contracts, competition, export and testing scrutiny</h1> A major Chinese apparel manufacturer and a domestic university announced commercial-scale production of a PFAS-free, bio-based waterproof-breathable membrane, claiming compliance with national testing standards and specified hydrostatic head and MVTR benchmarks. Legal issues include product regulatory compliance and labelling risk if trace organofluorines are later detected, potential intellectual property and trade-secret enforcement regarding the claimed indigenous technology, contract and warranty exposure tied to performance and price promises, and competition/antitrust scrutiny from dramatic pricing claims. Cross-border export, environmental reporting obligations, and third-party testing/advertising substantiation will be focal points for foreseeable disputes and regulatory review.