From Copper Pearl, this sleep bag features: Round neck Sleeveless Ultra-soft, breathable fabric with a hint of stretch Tagless Wraparound zip closure Designed with three layers of buttery soft fabric and a cozy, plush fill Copper Pearl's three-layer sleep bag is designed with your baby's comfort in mind Sleep bags have a 0.5 Thermal Overall Grade (TOG) rating, ideal for room temperatures between 65–75 degrees F WARNING: Not flame resistant. Wear snug-fitting to help keep children safe. Polyester/rayon/spandex Machine washable Imported.