The M13, is built with Frameless technology where the lenses are glued to the Polycarbonate frame, and the silicone is injected directly onto the frame. Its medium internal volume corresponds to about 127ml and contributes to easier cleaning, as well as to the balance of internal pressure, performing excellently at great depths.

It features a broad sealing ring for exceptional adherence and unprecedented comfort, as well as an additional lip, internally and peripherally, which offers sealing, but also relative stiffness, when you are in deeper dives. In addition, the inclined Tempered glass lenses in an "inverted tear" shape increase the lower and lateral visibility along the trunk, offering additional peripheral vision.

Finally, the strap buckles, made of POM material, are ergonomically designed with double buttons and cylinders that allow for easy and precise micro-adjustments of the strap. The M13 is considered ideal for spearfishing and free diving.

Features:

• Frameless construction technology
• Liquid silicone skirt, liquid silicone rubber.
• Lens treatment with hardening, Tempered glass.
• Lens thickness 4mm.
• Internal volume ± 127ml
• Double skirt lip.
• Rotating straps.
• Wide silicone strap.
• Weight 172g