The net pocket is small, but the elastic stroke of the net pocket is very good. It is best to be elastic and tight, in order to better fix the stable luggage. Under normal circumstances, the large finishing box can be well fixed.
Single and double layer difference: two layers are equal to two single layers, three sides are sealed, the middle is a net pocket, small items can be placed in the middle of the interlayer, which can play a good fixing role.