This sleep mask uses patented bending cartilage design, adjustable and durable, effectively blocking lights coming from the nose area.The soft cotton triangle wing design on this sleep mask greatly can stop the mask from moving and distracts your eyes and head from pressure.This sleep mask features 5 layers of super breathable fabric, including cotton, elastic sponge and modaier.Tight, clean and smooth seams ensure minimum rubbing in every sleeping position without any pressure.