Insulation package1. material: 600D polyester Insulation package and other materials are alo available.2. size: can be adjusted according to your needs3. color: as per customers' requirements4. main zipper for compartment, with a adjustable strap, also with a back pocket.5. we test our products before we sell, we can promie high quality.Weinspect all the materials when arrived, make sure all the materials can match customers' requirements ,Inspect the semi-finished goods during producing,Inspect the finished products ,Final inspection while packing up all the goods.6.We have wide range of products,if you do business with us,you needn't to wast freight cost and energy and time to buy different products from different supplier