keep warm bag 1)material:non woven fabric 2)customerized size ... so we can provide the best price within 12 days.keep warm bagMaterial,nonwoven fabric(100% pp),new polypropyleneWeight,30-150gsm ... Packing, opp packing,carton package or customerized carton package,carton box can be printed 1 color or customerized. 250-500pcs/ ... the earth, and welcomed by everyone, fashion and green . keep warm bag(es-5080)