Dual-Fabric Design: The cooling eye mask is made of PVC and a super soft back. Both sides can be applied, the PVC side can provide a deeper level of cold, while the fabric side provides comfortable direct touch and provides mild cold. <br> One size fits all: the straps super Elastic bands allow this gel mask to fit different head sizes of women or men, and help keep the mask in place, you can adjust the strap to make the cold mask tight to your eye area to enjoy cold compression. <br> Effective Relief: The reusable eye mask is ideal for relieving puffy, puffy eyes, dry eyes, tired eyes, headaches, migraines, sinus pain and the stress. An essential first aid kit for facial allergies or eye treatment at home, in the office or while traveling, or as a gift for someone you love. <br> Stay Cool Longer - Test of pressure, no rupture, no leakage. This cooling eye mask has more gel beads, which means it can stay cold longer. The gel beads stay flexible even after freezing, and the V-shaped hole helps block out light when you're resting.