The SV-4 is a popular low volume four lens mask which provides a wide field of vision. The push button buckles on the mask strap make this an easy mask to adjust for best fit. The SV-4 comes in either a black or clear silicon skirt. Both of these skirts feature the double flanged design for better sealing. This is a great fitting, durable mask and can be fitted with corrective lenses. 

Features

• Low volume for easy clearing and wider field of vision
• Revolutionary push-button buckles allow easy, quick strap adjustment
• Unique flexible buckle attachment swivels with facial movements and absorbs shock, preventing buckle breakage when mask is bumped
• Clear or Black, double-flanged silicon skirt
• Lightweight
• High quality tempered glass lens
• Supplied in clear plastic box