Natuworld Swim Diving Anti-Bug Biting Jellyfish Lycra Swimming Cap Full Face Mask Head and Neck Cover Protecting Face and Head From Jellyfish and other Aquatic Insect ,Sunblock and UV Protection Material: Polyamide lycra fabric Lycra allows head to breathe for greater comfort Protecting face and head from bug biting jellyfish and other aquatic insect Fast drying,sunblock and UV protection ,easy to put on and off Universal size, one size fits most