Unisex nan lightweight performance sports glasses with polarized UV protection lenses and non-slip nose bridge Kalsten
Description
The Kalsten sports glasses combine modern design with functional performance for outdoor and cycling enthusiasts. The frameless, curved lens shape offers a wide field of view and optimal wind protection, while the polarized lenses reduce distracting reflections and provide clearer contrasts. Ideal for activities such as cycling, running, trekking, or any outdoor athletic training.
Product Features
- Polarized lens with comprehensive UV protection for sharp, glare-free vision in changing light conditions
- Lightweight yet robust frame for high wearing comfort over long periods
- Non-slip nose bridge and flexible temple ends for a secure fit during fast movements
- Curved, frameless construction for unrestricted peripheral vision and improved wind protection
- Impact and scratch-resistant coating for use in active everyday life
- Good-Air design with ventilation openings to reduce fogging
Benefits
- Enhanced visual perception through polarized filters – less reflections on wet and shiny surfaces
- Comfortable fit even during prolonged wear thanks to lightweight material and soft contact points
- Secure hold during athletic activity due to ergonomic design and grippy contact surfaces
- Versatile use: from street training to leisure activities
Care Instructions
- Clean with a soft cloth and mild cleaning agent, do not use aggressive chemicals
- Use the included case for transport to avoid scratches
- Dry glass surfaces only with suitable glasses cleaning cloth
Why Kalsten ?
Kalsten stands for functional sports glasses that combine design and performance. These glasses are the perfect choice for anyone who values clear vision, reliable protection, and true everyday practicality.
Free standard shipping on all orders. No minimum purchase.
- Ships to: United States
- Processing: 1–4 business days (Mon–Fri)
- Transit: 5–10 business days
- Total delivery time: 6–14 business days
- Order cut-off: 5:00 PM PST
You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.
See our full Shipping Policy.
You have 14 days from delivery to request a return.
- Email support@open.shop with your order number to start a return.
- Items must be unused, complete, and in their original packaging.
- Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
- Damaged, defective or incorrect items: we cover all return and replacement costs.
- No restocking fees.
- Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
- Refunds are issued within 7 business days of inspection.
See our full Return Policy.
Questions about your order or our products? We're happy to help.
Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands
Email: support@open.shop
Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)
We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.
For quick answers, visit our FAQ page or use our Contact Form.