Be prepared for changes in environmental temperatures with Swaddle Duo. When you are dressing baby, remember the Goldilocks Guide: Baby should not be too hot or too cold, but just right - comfortably warm. With Swaddle Duo, parents can select the appropriate fabric to wrap baby. Two Premium Fabric options in a wonderful gift box. Cotton Flannel for cool to moderate temperatures and Cotton Marquisette open weave for warmer climates. Generous large square multi-use blankets. 123 Swaddle Tip Tag sewn to each blanket.