Tencel Modal was developed by the Austrian company Lenzing, renowned for its innovation and quality standards, Tencel TM Modal is made from sustainably grown and harvested Beech trees. It is processed using a water-saving closed-loop system, using organic enzymes that are repeatedly recycled. It is esteemed for its softness, comfort, breathability and moisture absorption. It has a silky touch and feel to it, and is often made into lighter and thinner fabrics. Your baby will sleep comfortably in these Coccoli Sleep Sacks.