I got this eye mask for my fiance because he often suffers from migraines. When he has a migraine he prefers to be in complete darkness and this eye mask helps tremendously with that. The strap is adjustable so if he needs it looser or tighter he can adjust it how he needs. It it made of high quality material. It is also super silky soft. It feels very nice when it is being worn. It definitely keeps the light blocked out. My fiance is so grateful that I got this for him. Overall, I would recommend this to anyone!