This hood mask is made of polyester and contains gel inside. This wearable headache relief hat/mask is stretchable to fit every face, head and eyes. It helps relieve inflammation, headaches, insomnia, nervousness, stress, and puffy eyes. It is soft and breathable, very skin-friendly, allowing your eyes to get maximum relaxation. And it’s so elastic that it won’t make you feel too tight. Can give you the best rest and relaxation. Measuring 8.7*6.7 inches, this custom temperature regulating sleeping headgear eye mask. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Portable, durable, practical for daily use.