What kind of fabric is the pressed cotton mentioned in the Snap Pad description?

Pressed cotton refers to a cotton fabric whose density has been increased by pressing the textile with high pressure. Generally, cotton easily absorbs water through the gaps between fibers and is prone to wear from friction, but when woven and pressed under high pressure, its structure becomes dense and strong.

POSTALCO makes this fabric by pressing cotton strongly using machines that used to make tent cloth in the past^[1]. By covering the pad's exterior with this densely compacted fabric, they ensured durability so it does not wear out easily even with daily friction and frequent use^[2].

For surface treatment, they also chose a method that preserves cotton's unique texture. Instead of a waterproof film that completely covers the fibers, only a light water-repellent treatment is added, allowing it to repel light drops of water touching the surface while maintaining cotton's characteristic soft feel^[3]. Furthermore, because PFAS, harmful chemicals that accumulate without decomposing in nature, are not used, you can hold it in your hands with peace of mind in daily life^[4].