Feature:

-- Small MOQ:1000pcs
-- OEM order is acceptable.
-- For silk printing:AZO free,Reach test 
-- Free sample & artwork design

Why choose us:

(1) Direct factory wholesale price
(2) For the sewing: the bag is much durable,can carry heavier thing under good sewing 
(3) Printing durable even washed by hand 
(4) Strict Quality Control Department, each piece need to be checked,double time check 100% check
(5) Free artwork design & inspection 
(6) 24 hours reply

The outer layer of the Polyester Cooler Bag could be made of water-proof and durable aviation material to secure temperature control(for example now-woven with mat lamination, polyester with pvc coating, cotton, jute, nylon and pvc ). The inner part consists of shiny aluminum foil or pvc,peva  and the middle layer could be insulated PE foam to reduce heat and enhance insulation.Aluminum in mylar - it reflects radiant energy. Most of the soft bags also have 
about 1/2" of urethane foam between the inner and outer walls to block conduction transfer.

(The thickness of the foam could affect the effection of the cooler bag. )