Hollis M1 Mask harness Audible Alarm

Audible Alarm

Features include: Scupper valve

Easy-to-Use Rubber Snorkel Keeper

Available in four sizes SM

And because we all hate having to make uncomfortable tweaks in the water

Hollis M1 Mask harness Audible AlarmThe M1 Mask raises the bar for optical quality and distortion free vision. The lens is made from Saint Gobain Diamant, a highly transparent extra clear glass which is valued for its unique appearance and optical qualities. The low iron oxide content gives it optimum clarity. Its light transmittance is greater than that of conventional glass. The use of extra clear glass results in a virtually colourless product which allows objects to remain vivid and