* It has waterproof EVA insulation layer

* Large capacity to design a package to meet the family demand for a picnic

 *The backside of the backpacks is designed by the ergonomics honeycomb structure,and the shoulder belt is also adopted.

* The shoulder straps are designed with high quality hardware openers and zipper pocket on the other side.

* Adjustable shoulder strap,high quality adjustment button.

* High quality 5mm pearl cotton