Comfi brings the advanced 3D breathable fiber to help parents soothe their headache. Knitted with polyester filament fiber by a unique X-90 degree way, the fiber is turned to be a cutting-edged invention with a 3D breathable technology.Sine it is totally breathable and moisture permeable with a high performance of airflow, the risk of suffocation due to baby&＃39;s stomach sleeping is highly reduced: thus creating a comfortable condition for sleeping.Washable and dry fast, germs and dust mites are hard to foster in such a clean condition.Tested by OEKO-TEX Standard 100 of EU and certified by SGS, the materials is free of allergic elements and toxic chemicals.It indeed provides an all-round, healthy and high-quality sleeping place for babies.