We accept Klarna, Mastercard, PayPal, Union Pay, and Visa.
No deliveries on Sundays or public holidays.
Yes. You have 14 days to withdraw your order. Returns within Germany are free of charge.
You can easily register your return via our Returns Portal:
The refund will be issued after inspection of your return, using the original payment method. This may take up to 7 business days.
Products with custom prescriptions or special configurations are excluded from the right of withdrawal.
Yes. All SIOLS glasses are manufactured under strict quality standards and individually inspected. The legal warranty period is 2 years.
If you notice a defect, please contact your authorized dealer or optician.
Spare parts are available exclusively through authorized dealers. Use our Dealer Search to find a partner near you:
No. Repairs and warranty cases are handled exclusively via authorized dealers. This ensures correct spare parts and professional adjustments.
The SIOLS.System is unique: modular, customizable, and compatible with almost any prescription. You combine frames, shields, and optical clips according to your sport, season, temperature, or face shape – and upgrade whenever you need.
The frame architecture “hugs” your head. Long temples, wrap-around design, and balanced pressure distribution provide a secure fit – no slipping, wobbling, or pressure points.
Yes. Developed from optical research: up to +/- 15 dpt, progressive lens compatible, and a very wide field of view. With the front shield removed, you instantly have clear prescription glasses for breaks.
The SIOLS clip is inserted from the front. Benefits: fog-free, space for long lashes, and maximum flexibility with shield swaps (tints & functions).
Yes. The MAXIMUS adapter allows direct RX glazing, with lenses seamlessly integrated into the shield – almost invisible.
Only the optical lens (clip/adapter) is replaced. Frame and shield remain – sustainable and cost-effective.
Wrap-around design = secure, pressure-free fit.
Yes. Not only tints, but also functions: different ACM ventilation technologies for sports, temperatures, and conditions. With the DPX key system, swaps are quick, secure, and fingerprint-free.
Over 90% of movement is visually controlled. Impaired vision (fogged or too-dark lenses) reduces reaction time and performance. Clear sight is a safety and performance factor, not a luxury.
Your glasses should support, not distract: protection, perception, comfort. So you find your flow – in training, competition, or everyday life.
Directly in our online shop or via authorized dealers/opticians:
Use our Dealer Search:
Opticians adjust the fit, order prescription clips, and provide expert advice – ensuring your glasses truly fit your needs.
Your optician orders the clip in your prescription. If your prescription changes, only the clip is replaced – shield and frame remain.
“Made in Germany”: development, design, production, and quality assurance all take place exclusively in Germany.
Short supply chains, high standards, direct quality control: durable materials, fair production, responsible value creation.
Modular by design: if your prescription changes, only the clip or lenses are replaced. Shields & frames are interchangeable – fewer resources, longer life for your favorite frame.
We only use your data to process orders, returns, and provide service – securely and confidentially.
Only if necessary for processing (e.g., shipping services, payment providers).
Yes. You have the right to access, correct, and delete your data at any time. Contact us at shop@siolsvision.com.
Our shop uses SSL encryption – your data is protected during transmission.
Via the unsubscribe link in every email, or by contacting us directly.
Our point of view.
We believe that there is a perfect pair of sports glasses for everyone.
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