A lens that changes with the light — from dawn to dusk, one pair handles every condition
The Fortis Switch Wraps feature photochromic Switch technology — lenses that automatically darken in bright UV light and lighten in low light conditions, giving you optimum vision at all times without ever needing to change glasses. Starting at filter Category 2 light amber they switch to filter Category 3 dark brown in full sun, then gradually return as light levels drop. Whether you're out at dawn, stalking in midday sun or watching fish fizz at dusk, the Switch Wraps adapt continuously to deliver perfect contrast and clarity throughout your session.
The wrap-around frame fits perfectly against the face to eliminate unwanted light from all angles, with side lenses providing true 180° peripheral vision. Soft rubber inserts on the frame arms prevent slipping, a unique top-frame vent system prevents fogging on the move, and the matte black flexible lightweight frame ensures all-day comfort.
Colours shown in pictures may vary slightly.
Light-sensitive molecules darken in UV light and lighten in shade — Cat 2 amber to Cat 3 dark brown automatically.
Wrap-around frame with side lenses delivers true 180° peripheral vision — spot fish at any angle.
Frame shape fits perfectly against the face, completely blocking unwanted light from all directions.
Unique vent at the top of the frame increases airflow — prevents misting when pushing a barrow or climbing to spot fish.
Soft rubber inserts on the frame arms keep the glasses securely in place and maximise wearing comfort.
Flexible matte black lightweight frame — comfortable enough to wear all day without fatigue.
| Brand | Fortis |
| Model | Switch Wraps |
| Condition | Brand New |
| Lens Technology | Photochromic — UV-reactive Switch technology |
| Light Filter Range | Category 2 (light amber) → Category 3 (dark brown) |
| Peripheral Vision | 180° — wrap frame with side lenses |
| Frame | Matte black — flexible and lightweight |
| Frame Features | Soft rubber non-slip arm inserts · anti-fog top vent |
| Includes | Protective hard case |
| Ideal For | All light conditions — dawn · midday · dusk |