Features:
1. Cooling fan principle design, effectively anti fog, no breathing tube required;
2. DRY DOP system, after water enters, the top valve will automatically close to prevent water from entering.
3. Elastic headband, easy to wear without intertwined hair.
4. Ultra wide anti-crack face mask.

Specifications:
Color: black
Face material: polycarbonate
Lining material: food grade silica gel
Packing weight: 600g
Size:
S/M: inner diameter 17x13cm/6.69x5.12", outer diameter 23x19cm/9.06x7.48" (suitable for over 14 years of age)
Application: for GoPro, Xiao Yi camera, or JS 4000

Package Content:
1 x Full Face Diving Mask
1 x Package