Material's ability to return to original thickness after compression. EVA recovers shape after pressure removed; memory foam permanently compresses. PopsyKosy 5-layer EVA construction maintains cushion 7-10 years per customer reports.
Material's ability to return to original thickness after compression. EVA recovers shape after pressure removed; memory foam permanently compresses. PopsyKosy 5-layer EVA construction maintains cushion 7-10 years per customer reports.