... , and double-sided hot connections, without apparent juncture, zipper is completely closed.It cans built-in air respirator and ... Hip Circumference:135CMBoots Size:39-41Yardusage methodMethod One1,Pull the zipper of chemical protective ,then put feet into rubber boots ... with the anti chemical suits, the other end with air respirator .5,Open the cylinder,open the safety valve,pull the airproof zipper to ...