20mm thickness 3D mesh seat cushion soft,breathable,lasting elastic,great support ability,anti-bacterial, ... sponge20%20%20%20% Details of 3D mesh car seat cushion: Material100% Polyester 3D spacer mesh fabricPatternMesh holeSize40*40*2cm, ... . Combined, they offer exceptional conforming support, cooling breathability and comfort! Features:Features:1.Soft2.Cool3.Clean4.Dry5.Breathable6.Pressure-relief7 ...