Denier (D):

– Indicates yarn thickness. Higher denier = thicker, heavier, more durable fabric.

– Common Ranges:

– Lightweight: 150D, 210D (sling bags, linings)

– General Use: 300D, 420D, 600D (backpacks, duffels, laptop cases)

– Heavy-Duty: 900D+, 1680D (suitcases, military/tool bags)

– Note: Denier typically references warp yarn (e.g., “600D Oxford”).