Material selection is the primary driver of both cost and perceived value. For high-end luxury markets, prioritize Full-Grain or Top-Grain Leather, which offers superior durability and a natural patina over time. For eco-conscious or mid-range brands, consider GOTS-certified organic canvas or high-quality PU/Vegan leather that meets REACH or RoHS standards to ensure no harmful chemicals are present. Always request material swatch cards to verify thickness, hand-feel, and color consistency before mass production.