Hollis continues to lead the sidemount revolution with the new SMS Katana - the latest innovation in our line of sidemount systems engineered to perform in the most extreme environments.
Honed by extensive testing and refinement, the SMS Katana, designed by Nick Hollis in partnership with leading cave
diving instructors, is a cutting edge cave penetration tool without equal. the SMS Katana design builds on the proven SMS100 and SMS75 sidemount systems but was further streamlined to reduce drag and allow for easier movement in confined spaces providing optimal performance in the warm water cenotes and caves of northern Florida and Mexico.
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