BiSphaera Prizm Black Polarized Lens with Matte Black Frame Size:One Size it has a reversible strap

it has a reversible strap design that's black on one side and brown on the other

or bulk adapter

Thanks to the combination of a highly refined hydrodynamic body and the LBO's virtually frictionless weight-transfer system

Regular fit that lands on the hip

and that goes for two liter soda bottles as well

BiSphaera Prizm Black Polarized Lens with Matte Black Frame Size:One Size it has a reversible strapSeamlessly transition from dominating competition to owning the daily hustle with BiSphaera. The dual lens performance sunglass is designed for the athlete who is looking for a versatile frame that offers all the benefits needed for sport and life. Its constructed from lightweight O Matter, and features Unobtanium nosepads and earsocks, for a comfortable fit with no slip grip. Available with Prizm Lens Technology and Oakley Authentic Prescription lens