# optray ice sunglasses > React optray ice sunglasses - automatic ShadeTronic® tinting (S2–S4), solar-powered, polarized, UV400, 36 g, Swiss Made - Price: 289.00 CHF - Brand: React - Category: Glasses - Availability: out of stock - SKU: 7640429873743 ## React optray ice Sunglasses The React optray ice is a **sports sunglasses** model for ambitious cyclists in Switzerland who don't want to rely on changing light. Thanks to **ShadeTronic®**, the tint of the lenses adapts automatically in only **0.1 seconds** – from **S2 to S4**, without intervention and without delay. The integrated **solar cells** power the liquid crystals self-sufficiently, so no battery is required, making the glasses low-maintenance and ready for everyday use. The "ice" variant features a blue mirror coating that **contrasts reddish details** – ideal on forest trails or gravel sections. With **UV400** protection and **polarized** lenses, vision remains clear and the eyes are reliably shielded. The optray is manufactured in Switzerland and weighs just **36 g**, which makes it especially comfortable on long rides. This technology and craftsmanship were honored with the ISPO Award, further underlining the practical benefits. - **ShadeTronic®**: automatic tinting in **0.1 s** (range **S2–S4**) for consistent vision in sun, shade and tunnels. - **Solar self-sufficient**: integrated solar cells, no battery, no charging. - **Ice lenses**: blue mirror coating with **contrast enhancement** for reddish details. - **UV400** and **polarized** for protection against UVA/UVB/UVC and reduced glare. - **36 g** light, Swiss Made, designed for sporting use. - **Prescription clip** available as an accessory for eyeglass wearers. - Polarization is designed so that **digital displays** (bike computer, smartphone) remain easily readable. ## Technical Details and Functions The heart of the optray ice is an **LCD lens construction** that controls its tint continuously and thus smooths abrupt brightness changes. Compared to classic photochromic lenses, the technology reacts extremely quickly and keeps perceived brightness subjectively "constant", which builds confidence at speed on the road bike or on singletrack. The **solar cells** supply the necessary energy directly at the lens, eliminating cables and batteries and keeping the glasses particularly **low-maintenance**. The **polarization** is modified so that important **bike computers** and **head-units** remain easy to read, without disruptive blackouts. Additionally, the **UV400** filter provides full protection up to 400 nm, while the tint range **S2–S4** covers use from bright to very bright. The optray is manufactured in Switzerland, ensuring short supply chains, clean workmanship and precise **quality control**. ## Use Cases and Benefits Whether **road bike**, **Gravel** or **mountain bike** – the optray ice plays to its strengths wherever light changes are rapid and frequent. When moving from open fields into shaded forest, on alpine passes with tunnels or in the evening sun, vision stays stable, which eases **line selection** and noticeably reduces eye strain. Thanks to the **contrast enhancement** of the Ice lenses, reddish details like roots, rocks or leaves are better differentiated, increasing **terrain readability**. The combination of **36 g** weight and Swiss fit feeling ensures the glasses are barely noticeable even on long rides. A **prescription clip** is available for eyeglass wearers so personal visual correction can be integrated without hassle. Thanks to the **energy self-sufficient** operation, the glasses are always ready – no charging required, whether for commuting through the Limmattal or a weekend ride in the Engadin. ## Care, Accessories and Everyday Suitability To keep optical performance consistently high, regular cleaning of the **mirrored lens** with a soft cloth and lukewarm water is recommended. If needed, the **prescription clip** can be retrofitted, making the optray ice versatile for everyday use or driving. The **polarization** helps reduce reflections without impairing the readability of digital displays – practical for **bike computers** and **smartphones**. Because the glasses operate without a battery, there are no charging cycles to maintain, and they are ready for use at any time. The robust, scratch-resistant and shatterproof design of the lenses increases durability in harsh outdoor use. Those who value **Swiss Made** get with the optray ice a locally manufactured product focused on precise workmanship and serviceability. ## Award and Trust The optray technology was awarded the **ISPO Award 2022**, which confirms the level of innovation of the **ShadeTronic®** solution. Special mention was made of the very fast adaptation, the practical benefits for high-speed sports and the consistent fit. For Swiss cycling this means: fewer **glare moments**, more control and more consistent vision – especially in demanding topographies with frequent changes of light and shadow. With its combination of **UV400**, **polarization**, **S2–S4** coverage and **solar autonomy**, the optray ice consistently focuses on performance in everyday life and training. Anyone looking for sunglasses for "everything between a Zürichsee loop and an alpine pass" will find a technically refined, locally manufactured solution here. ## Variants - 7640429873743: out of stock --- Source: https://kilometro.ch/en/products/glasses-109/optray-ice-sunglasses-228