1. 3D design mouth perfect match the curve of eyes and nose.
2. Made by skin friendly Micro fiber polyester fabric, washable and very comfortable for wearing
3. Elastic strap, you can adjust the size as you need.
5. This model is the most comfortable onw in the market for this price, you will never regret buying it.
6. We are Suggesting to order 3pcs, 1 for home, 1 for office, 1 for travel.