Rudy Project Deltabeat Sunglasses combine a ventilated wraparound design with a quick-change lens system, engineered for cycling and high-intensity outdoor use. Key attributes: Pacific blue | Multilaser ice | Rilsan | UV protection up to 400 nm | PowerFlow ventilation reduces fogging | Quick-change lens system | Lightweight (31 g) | Adjustable ErgoNose for a personalised fit | Vent controller for adjustable airflow | Rubber temple pads for secure grip | Compatible with prescription insert (sold separately) | Wraparound shield lens | Semi-rimless frame | Aerodynamic profile | Total Comfort Fit ergonomics | Dimensions & fit: Dimensions: 149 x 51 x 131 mm (W x H x D) | Weight: 31 g | Eye size: 69 mm | Bridge (DBL): 11 mm | Temple length: 131 mm | Base curve: 8 | Universal one-size with Total Comfort Fit | Adjustable for most face shapes | Composition & care: Frame: Rilsan (bio-based polyamide)