Hemp center cavity is bigger, takes approximately 1/2-1/3 of the cross section area, and along the fiber of there are many crevasses and holes across to the center activity, therefore the hemp has a great performance on moisture absorption and ventilation.

Like the hemp canvas, the moisture absorption rate of it is 7.43mg/min high, and the moisture dissipation rate, 12.6mg/min.

Hemp fiber has a porous nature allowing it to breath, therefore it keeps you cool in the summer, and in the winter it traps air into the fiber keeping you warm.