The Hollis M3 Mask aims for perfect visibility with a low profile, framed mask fitted with Saint Gobian Diamant crystal clear glass and a 100% pure black silicone skirt.
Stylish Matt Finish on the frame, skirt and strap but the sealing face of the skirt has a standard smooth finish for a perfect seal. The skirt incorporates reinforcing ridges down the side and underneath the buckle to prevent the skirt from creasing and collapsing when moved, which would otherwise compromise the seal.
High Grade Crystal clear glass from Saint Gobian to improve clarity and light transmittance. Standard tempered glass has a green tint that is created by iron and other impurities in the lens. Impurities scatter and reflect light as it enters through the lens, reducing the amount that is able to pass through and also affecting colours. Crystal clear glass has an especially low iron and impurity content which reduces distortion and improves low light visibility and colours.
Tear Drop Shape lenses improve the field of view to the side but also when looking down. The reverse teardrop shape to the lower frame combined with the raked angle skirt brings the bottom of the frame back in toward the face and moves the frame out of the field of view. This not only improves lower visibility without the need to tilt the head but also reduces the internal volume of the mask.
Four Way Buckle system improves strap positioning and comfort but also reduces the stress transferred to the skirt, helping to prevent the skirt from being buckled and creased through movement. The buckle assembly is able to swivel up and down for vertical strap adjustments and also in and out to allow varying fitting angles. A simple one button strap length adjustment makes final strap tightness corrections quick and easy.
- Twin lens frame design
- Reverse tear drop lenses with raked skirt
- Matt external finish
- 100% pure silicone skirt
- Four way buckle system
- Crystal Clear Saint Gobian lenses
Hollis M3 Mask - Features
?Some mask lenses are specially coated to improve colour / light characters. Most coatings work by reducing the amount of light that is reflected as it passes through the glass, reducing glare and reflections and improving brightness within the mask.
|Saint-Gobian Diamant Crystal Clear Glass|
?Masks are available with either an external (Frame) or internal (Frameless) which gives the mask it's structural strength.
Somes advantages of an external frame design are replacement of parts as the mask can usually be dismantled into its component parts and some manufacturers offer off the shelf corrective lenses which can be retro fitted.
The advantages of a frameless design are that the mask is usually of a lower profile (less internal volume) which masks clearing easier, the skirt wraps around the internal frame providing a more flexible seamless finish and the overall weight of the mask is reduced.
?The main lenses are available in two different configurations, Single and Twin.
Single lens masks provide a more open vision as the frame between the centre of the eyes is removed, this also typically results in a lower profile mask.
Twin lens masks can allow for individual corrective lenses to be retro fitted, completely replacing the original lenses.
?A low profile mask offers the smallest internal volume possible, making clearing easier.
?Some masks allow off the shelf perscription lenses to be retro fitted to the mask, completely replacing the original lenses.
?A one way purge valve can be incorporated into the frame or nose section to allow for hassle free mask clearing. The diver just needs to tilt his/her head to allow the water to flow to the valve and be purged out.
?A second skirt / lip is often incorporated into a mask skirt to increase the surface area that can be used to seal the mask against the face.
?Side lenses are small glass panels which provide better peripheral vision and also increase the amount of light that is able to enter the mask.
The lenses can either be fitted directly to the main lenses to offer a seamless field of view or as separate lenses built into the side of the mask frame.
?The vast majority of mask skirts are made from silicone, a flexible and comfortable material.
Cheaper masks can use similar but for rigid versions such as Silita or PVC and do not seal as well as silicone.
Higher specification masks are now using a more advanced silicone to improve the softness of the silicone without affecting the expected life (or even improving the life using additives to prevent the silicone becoming discoloured or brittle over time)
We offer free standard delivery on orders over £50.
Standard delivery is £3.70 for orders under £50. You will receive your order 2 - 4 days from the date of despatch.
Next Working Day is £6.50.