Denier (D)
Also: den, yarn thickness
Denier is a unit for the yarn thickness of a fabric. The higher the number, the thicker, tougher and heavier the fabric.
- 1Outer coating
- 2Nylon fabric
- 3Inner coating
Typical values for packrafts are 70 to 210 denier for light tubes, 420 denier for tough tubes and floors and 840 denier or more for heavily stressed floors. Anfibio, for example, uses 210/420 den urethane nylon, MRS uses 210 den for the tubes and 840 den for the floor on the Nomad.
But denier alone doesn't tell the whole story: weave, coating and workmanship matter just as much.
Sources and further reading
Research as of 13 Nov 2026. We have marked manufacturer information as such.