These muslin swaddle blankets are made with ultra-soft, breathable bamboo and cotton muslin fabric that is gentle on baby’s delicate skin while still managing to be super durable. Blankets are generously sized at 47" x 47" for use as a car seat cover or nursing cover in addition to swaddling. Manufactured at an OEKO-TEX Standard 100 certified factory, you can feel confident that these swaddle blankets are free of toxic chemical and always safe for your baby.