Vehicle cushion and vehicle seat cushion

The present invention provides a vehicle cushion and a vehicle seat cushion, the vehicle cushion comprising a polyurethane foaming body. The vehicle cushion is characterized in that the polyurethane foaming body is formed from a polyurethane foaming body composition comprising a polyol, an isocyanate, a catalyst, a foaming agent, and an additive, the additive is a dicarboxylic acid ester compound with the weight-average molecular weight of 500-5000, and the air permeability of the polyurethane foaming body according to JIS K 6400-7: 2012 is 6.0 cc/cm /second or above; the vehicle seat cushion comprises a seat cushion main body and the vehicle cushion which is laminated on the seat cushion main body. 本发明提供一种车辆用缓冲垫和车辆用座垫，所述车辆用缓冲垫包含聚氨酯发泡体，其特征在于，所述聚氨酯发泡体由聚氨酯发泡体组合物形成，所述聚氨酯发泡体组合物包含多元醇、异氰酸酯、催化剂、发泡剂和添加剂，所述添加剂为重均分子量为500～5000的二元羧酸酯化合物，所述聚氨酯发泡体的根据JIS K 6400-7：2012的透气量为6.0cc/cm2/秒以上；所述车辆用座垫包含座垫主体和层叠在所述座垫主体上的所述车辆用缓冲垫。