•Four Seasons Use: One side of the use of ice silk cool feeling fabric, feel cool and comfortable when using, the other side is the use of high-quality polyester fabric, feel warm and soft when using, to meet the needs of different climate use.
•Block Out Light: sleeping mask material is soft and comfortable, the edge fits the face well, and covers a large area, effectively blocking lights. The mask is very good at keeping the light out, even on very sunny days.