Surface Material

Cotton (100% organic cotton) Because it is a natural material, cotton seeds and other particles may remain as black dots on the surface sheet.

Water absorbing material

Cotton-like pulp, absorbent paper, polymer absorbent

waterproof material

Polyethylene Film

Fastening material

Polyolefin

Elastic material

Polyurethane

Binding material

Styrene, olefin, etc.