... ,recyclable 4.Polyester,Canvas,PU/PVC,Satin,Non-woven,Knit large front zipper pocket school boy book bag folding backpack Description ... : 15-20 days normally, but exactly depands on your quantity.Shipping:express way (DHL,Fedex,UPS,EMS is advised to be ... and elongation, good air permeability, non toxic. Low resistance and large dust retaining capacity. Urable, reusable, washable.pls send us the ...