Wool: Steam dry processing for fluffiness and peace of mind. The wool of the rolled cotton part is made with 50% steam dry processing. Hygienic and safe with high temperature steam and quick drying. The smell of wool is also reduced. The firmness and fluffiness of the product will improve its elasticity. Wool is a material with excellent moisture absorption, moisture wicking, and heat retention. It is made using a cotton manufacturing process to make it even more effective than its original properties. Side fabric: Clean fresh processing, hygienic. The fabric on the side of the futon is antibacterial, odor resistant, and resistant to dust mites (Clean Fresh Treatment). It prevents the growth of bacteria on the fibers, so it is hygienic and comfortable to use. They also repel unpleasant dust mites for added comfort. Durability... Just because you can use it every day. Sturdy and durable A futon for everyday use all year round. Durability is important because you use it every day. Made with sturdy and durable side fabric and carefully sewing, so you can wear it for a long time.