Hollis SMS75 Sidemount System - XXLG Scuba Tank Accessories which means that it can

which means that it can work with Movescount app

Anti-Reflective Coatings or “ARC” is a multi-layer metal oxide coating process applied to both sides of the UltraClear lenses

Proper trim is key and the wing is designed to promote horizontal diving with increased lift towards the hips where it’s needed most

combined with the different blade edges

Hollis SMS75 Sidemount System - XXLG Scuba Tank Accessories which means that it canHollis has become a leader in the sidemount market. It is not just a fad and not just a tool for cavers, it's here to stay and is growing. The SMS75 is an evolution from years of sidemount development, which started with the SMS100. Hollis has become a leader in the sidemount market. It is not just a fad and not just a tool for cavers, its here to stay and is growing. The SMS75 is an evolution from years of sidemount development, which started with