🔧 Compatible with:
💛 SIOLS System Frame (one frame for all SIOLS lenses)
➕ SIOLS Prescription Clip (optional)

👉 View frames here
👉 View prescription clip here

VSN.Biking Kona Sys.Interchangeable Lenses

Full concentration, undisturbed vision. With razor-sharp contrasts, reliable glare protection, and intelligent ventilation to prevent fogging. Developed for peak performance in triathlon and endurance sports – for maximum performance at any speed.

• Maximum vision – unrestricted in any body/head position
• ACM Technology – optimal air circulation, no fogging or sweating
• Retina Technology – razor-sharp contrast in all weather conditions
• Aerodynamic design – for maximum performance & minimal resistance