noun
denier
Unit of linear mass density for fibers, especially in textiles; higher denier means thicker thread.
このストッキングは30デニールです。
These stockings are 30 denier.
デニールが高いほど生地は丈夫になる。
The higher the denier, the stronger the fabric becomes.
Borrowed from English 'denier', ultimately from French 'denier', a coin and unit of weight.