Is the SleepSack Wearable Blanket chemically treated with flame retardant chemicals? December 18, 2024 20:18 Updated No! The fabric and fibers used to make our garments are not chemically treated in any way. Related articles Does the SleepSack Wearable Blanket meet the Consumer Products Safety Commission (CPSC) guidelines for fabric flammability? Does the SleepSack Swaddle meet the Consumer Products Safety Commission (CPSC) guidelines for fabric flammability? Why is the SleepSack Wearable Blanket sleeveless? What is a TOG Value? How do I transition my baby from Swaddling to a SleepSack Wearable Blanket?