HEAT BOND TECHNOLOGY: UAMAL sleep eye masks are produced with high standard heat bond technology instead of glue that makes them sturdy & durable against wear and tear. LIGHTWEIGHT & PORTABLE: Our blindfold eye masks are lightweight, making it easy to store in your handbag & travel with. Ideal for meditation, Yoga, flights, napping, & shift workers. Note: hand wash with water below 40? & let it dry naturally. ICE SILK SLEEP MASK: Our sleeping eye masks are made of slow rebound memory foam & premium soft ice silk fabric that has calm, cool, & super breathable texture. The eye mask has adjustable & pain-free head strap that does not fall off during sleep. ERGONOMIC 3D DESIGN EYE MASKS: It’s especially designed eyecups & wider adjustable straps, produce zero pressure on your eyes. Brings excellent comfort; make it a perfect eyelash extensions sleep mask for women. Skin-friendly & fit all size heads. 100% BLACKOUT SLEEP MASK: UAMAL eye mask fits comfortably; and blocks light very well. The face-fitting contour feature assists blackout to help boost melatonin production so you can fall into a deep REM sleep every night & helps improve insomnia.