Alpina Twist Six S HR V - Cat 1-3

Designed for athletes who demand adaptable performance across changing terrain and weather, the Alpina Twist Six S HR V combines lightweight comfort, modern styling and intelligent lens technology in a compact fit built specifically for narrower faces. Whether you’re hammering flowing MTB singletrack, pushing hard on the road bike, heading out for a trail run or hiking fast-moving mountain terrain, these versatile sports sunglasses deliver clear vision and dependable protection all day long. The updated Twist Six design brings a sharper, more modern look while maintaining the secure fit and comfort the series is known for.

At the core of the Twist Six S HR V is Alpina’s advanced Varioflex lens technology, which automatically adapts to changing light conditions in seconds. As sunlight intensifies, the photochromic lens darkens automatically, then brightens again when cloud cover or shade rolls in, making these sunglasses ideal for mixed woodland trails, variable mountain weather and long days outdoors where light conditions constantly shift.

The highly curved half-frame design provides excellent coverage against wind, dust and trail debris while maintaining impressive ventilation. Optimised Airflow technology helps prevent fogging during hard efforts, while Fogstop coating maintains clear visibility when intensity levels rise. Hydrophobic lens treatment repels water, mud and sweat to keep your vision sharp in wet or demanding conditions.

Built from lightweight yet durable TR90 materials, the Twist Six S HR V remains comfortable during long training sessions and endurance adventures. Adjustable cold-formable nose wings and Alpina’s patented temple inclination system allow you to fine-tune the fit and lens angle for greater comfort and stability over rough terrain.

Technologies

Varioflex: is a lens technology in which the lens tint automatically adjusts to the weather. The self-tinting (photochromatic) lens reacts to visible light. When exposed to radiation, chemical elements open up and create a flat, darkening effect. When the light intensity decreases, the chemical elements close and the lens becomes brighter again. This process takes seconds. The result: a lens for a wide variety of light conditions.

Features

• Varioflex photochromic lenses automatically adapt to changing light conditions
  
• Slim fit designed specifically for narrower faces
  
• Lightweight half-frame construction for comfort and ventilation
  
• Optimized Airflow system helps reduce fogging
  
• Fogstop coating maintains clear visibility during high-output activities
  
• Hydrophobic lens coating repels water, dirt and sweat
  
• Adjustable nose wings for a secure personalised fit
  
• Patented temple inclination system adjusts lens angle
  
• Decentered lenses provide distortion-free vision
  
• Durable TR90 frame construction
  
• 100% UV-A, UV-B & UV-C protection
  
• Ideal for MTB, road cycling, hiking, running and dirt bike use

Specification

• Area of application - Variable conditions: cloudy, overcast, snowfall, sunny
• Area of application: Hiking, Ski Touring, cycling, MTB, running, beach and water sports
  
• Lenses: Cat 1-3 reactive, Fogstop
• Shape: Sport Wrap
• Weight: 24g
• Frame Type: Semicircle
• Glasses Width: 135mm
• Frame Material: thermoplastic polyamide (TR 90), thermoplastic rubber (TPR)
  
• Standard: EN ISO 12312-1:2013 + A1:2015