365 DAYS GUARANTEE: We are dedicated to providing a better silk sleep mask to guard your beauty and comfort when sleep. If there is any quality issues, we offer a 365 days guarantee, please feel free to contact us, we will make it right for you within 24 hours. We ensure you risk-free to shop from LaCourse. BLOCKS THE LIGHT COMPLETELY: The silk eye mask sleep has considerable size for adult and gives good coverage and blocks the light completely. Ultra soft to fit face closely, considerate size to cover eyes surrounding area very well, multi-layer filled with cotton, silk sleeping mask can black out light perfectly for a blissful night or travel sleeping. SILK BENEFITS OF SILK EYE MASK: The silk feels beautiful against your skin, soft and elegant with perfect temperature control. It feels like it can breathe but is warming and/or cooling when it needs to be. the way that silk doesn't irritate your sensitive skin, nor does it indent the delicate skin around your eyes or make your hair feels static. HIGH-QUALITY REAL SILK EYE MASK with NO HARMFUL CHEMICAL: The LaCourse silk sleep eye mask with an Premium adjustable strap rather than elasticated so doesn't put any pressure on your face/eyes and fit well. Also our silk sleep mask made from organic mulberry silk which colored with environmentally-safe dyes, No harmful chemical and not easy to run after washing. SILKY IS THE NEW COMFY: LaCourse silk eye mask made from 100% 19 momme organic mulberry silk on both sides, with a lightweight pure cotton padding inside. (Tips: Avoid imposters, A real silk burn test included with your purchase!) Perfectly soft, silky and comfortable, enjoying the feel of the silk against your skin, does not put too much pressure on your face/eyes.