baby sling carrier,backpack,baby carrier,sack 1.outer knited cotton,inside polyurethane foam,nylon net 2.EU and USA standard baby sling carrier,backpack,baby carrier,sack1.soft and baby comfort2.fast fabric and multifunctional strape3.meet the test of EN71,ASTM,CPSIA,AZO FREE, etc.4.OEM cotton baby sling carrier