Bloc
Twenty Five
Twenty Five
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The Bloc Twenty Five X4900 sunglasses are engineered for peak performance and maximum protection, featuring a matt black frame with silver mirrored grey Cat 4 lenses. Designed for demanding outdoor environments, they combine advanced optics with a secure, comfortable fit.
Features
Features
Silver mirrored grey Cat 4 lens – provides maximum glare reduction and superior protection in extreme brightness
Matt black frame – lightweight, durable, and built for high-performance activities
Non-slip hypoallergenic temple tips – ensure comfort and a secure fit during intense use
Ideal for mountain, water, and high-exposure environments
XTR Karbon8 optical class 1 lenses – distortion-free, impact-resistant, and crystal clear
Maximum UVA & UVB protection
⚠️ Category 4 lenses are not suitable for driving
Tested to BS EN ISO 12312-1:201
Frame size: 67 □ 17-122 – 67mm lens width, 17mm bridge, 122mm arm length
Specifications
Specifications
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