Our Sleep Mask contains low rebound memory foam and elastic polyester, for its fit and comfort! Our Sleep Mask has a 9cm range adjustable strap design which could adjust to 20cm without hooking your hair. Weighs 0.88oz to reduce pressure on the face, 3D Designed eye cavities let you blink freely and not smudge makeup. nvisible nose alar has been added to better provide comfort and almost total darkness, while old masks cannot. Two pack sleep masks, you could use them with your companion together to sleep.