We searched the globe for the perfect knit fabric for our pajamas. We started with hand pulled Peruvian Pima cotton, which is known for its silky luster and unbelievably soft hand. We combined this Pima cotton with Modal to get the perfect drape and added Elastane to give it stretch and recovery so they look and feel great with every wear. These PJs are so luxuriously soft you'll never want to change out of them.