Don't Ken color, not wool, not decay, can relapse cleaning, long service life (1) handle delicate and softFiber flexural degree bending stiffness and represented in the smaller, fiber bending stiffness more soft. Fiber flexural stiffness and diameter of fiber is proportional to the square of 4 times, when linear density dtex to dtex from 1.1 0.11 fineness, fiber for one tenth of the original, and ...