# Demos > KOO Demos - Performance sunglasses with ZEISS Red Mirror lens (VLT 23%), large coverage, lightweight 36g and anti-fog ventilation - Price: 180.00 CHF - Brand: KOO - Category: Glasses - Availability: out of stock - SKU: 8057099285957, 8057099222075, 8057099222099 ## KOO Demos The KOO Demos is a large-coverage performance eyewear for **road cycling**, **gravel** and **cyclocross** that combines full protection with wide **all-around vision**. Its high-quality **ZEISS** lenses are designed for varying light conditions and deliver clear, high-contrast vision without distracting reflections. The protective goggle-inspired design sits securely, while thoughtful **ventilation** minimizes fogging – ideal on long Alpine climbs, fast descents or daily commuting. Non-slip temples and the adjustable nose bridge ensure the glasses stay reliably in place even on rough Swiss trails. - ZEISS polycarbonate lens with **cylindrical** shape and **anti-scratch** coating for clear, distortion-free vision. - This variant: **Red Mirror**, **VLT 23%**, **Filter category 2** – balanced for changeable to bright conditions. - Non-slip **MEGOL** temple tips and two-stage adjustable nose bridge for secure fit. - Integrated **ventilation** to reduce fogging and maintain consistently clear vision. - Tested protection standards: **ANSI Z80.3**, **AS/NZS 1067.1**, **ISO 12312-1**. - Weight only **36 g**; delivery includes additional **Nosepad/Bridge**. ## Technical Details and Features The Demos uses a one-piece, **cylindrical lens** made from ZEISS polycarbonate that opens up wide fields of vision while remaining robust against scratches. The lenses meet **ANSI Z80.3**, **AS/NZS 1067.1** and **ISO 12312-1** standards, ensuring reliable UV protection and optical precision in sporting use. In this version, the **Red Mirror** lens with **VLT 23%** offers **Category 2** tinting – a versatile setup for the typical mixed conditions between the Mittelland and foothills. The ventilation is positioned so air can circulate and moisture is quickly removed without reducing coverage. At only **36 g**, the glasses feel pleasantly light; an additional **nose pad** is included for individual fit. Optionally, the Demos is compatible with the **Optical Clip Evo** for prescription lenses and replacement lenses (**Demos Lens**) are available separately. ## Applications and Benefits Whether fast road bike rides, dusty gravel loops at the southern foot of the Jura or technical cyclocross sections – the Demos covers a broad spectrum. The generous coverage reliably protects against headwind, mud and gravel, while the **ventilation** reduces fogging in humid valleys or with winter breath. Thanks to non-slip **MEGOL** temple tips and adjustable nose bridge, the glasses remain stable even with vibrations and under tight helmet straps. Testers also praise the very high optical clarity and calm field of vision across the entire lens, which builds confidence especially on rough terrain. This gives you confident vision at high speeds without constantly having to readjust. ## Fit, Comfort and Practice The combination of elastic frame, extended **grip zones** on the temples and the two-stage adjustable nose rest ensures a precise, pressure-free fit on various face shapes. In practical testing, the Demos is highlighted for its very secure hold and even weight distribution – even with head movements or rough sections. The ventilation openings work unobtrusively in the background and help quickly disperse condensation on climbs or at traffic lights. This keeps vision stable without having to compromise on coverage. Those who need prescription lenses can retrofit with the **Optical Clip Evo** and make the glasses suitable for everyday use. ## Variants - 8057099285957: out of stock - 8057099222075: out of stock - 8057099222099: out of stock --- Source: https://kilometro.ch/en/products/glasses-109/demos-891