... a good effect of themQuick Details Age Group: AdultsProduct Type: Vest & WaistcoatSupply Type: OEM ServiceShell Material: 100% CottonFilling Material: ice ... a polybag and then in export cartonDelivery Detail:20-25daysSpecificationsCooling vest 1.CE,MSDS,FDA,BV,SGS,TUV,USP61,LFGB, ... elderly, infants, young children and frail to use. self cool work vest with self cooling material as filling material