The Ocean Band Is Made Of High-Performance Fluoroelastomer, A Material That Is Resistant To Water, Heat, And Corrosion, It Is Molded In A High Performance Elastomer With A Tubular Geometry Allowing It To Stretch For A Perfect Fit, Even Over A Wetsuit. The Corrosion-Resistant Titanium Buckle And Adjustable Loop Secure The Band During High-Speed Water Sports. Whether You Are Into Swimming, Surfing, Or Sailing, The Ocean Band Is The Perfect Choice For You.