B2B buyers should prioritize PEVA (Polyethylene Vinyl Acetate) materials over standard PVC, as PEVA is eco-friendly, chloride-free, and offers superior soft-touch comfort for bare feet. Ensure the adhesive backing utilizes high-strength waterproof acrylic glue to prevent peeling in high-humidity environments. For commercial safety, look for a textured surface (diamond or grit pattern) that provides a high Coefficient of Friction (CoF), ideally meeting ASTM F609 or DIN 51097 Class B/C standards for wet-room safety.