This Sweater Care Pop-up Dryer is plastic-free and made with eco-friendly materials including: cotton mesh, metal D-rings, and a silicone sleeve for the internal wire edging. The Pop-up Dryer helps air-dry hand washables more quickly by allowing increased airflow above and below your garment. Simply open the Pop-up Dryer, adjust the straps with the D-rings, place it on a towel, blocking mat, or water-resistant surface, and lay your damp item over the mesh. Whether they are machine or hand washable, this dryer will help your knits look their best for years to come.