Road cyclist at dawn wearing TriEye rear-view mirror sunglasses, eyes forward on the road, a car approaching from behind
Michael Fongen

What rear-view awareness means across cycling, running, rowing and commuting — and how a mirror built into the lens lets you see behind you without turning your head.

Guides

Road cyclist in a yellow jacket riding at dusk on an autumn street with a car's headlights behind, wearing The View with a rear-view mirror in the lens
Cycling Rear-view awareness

Cycling in the Dark: How to Ride Safely When the Clocks Go Back

By TriEye

How to ride safely in the dark after the clocks go back: lights, reflectives, lens choice, road position, glare, and seeing traffic behind you.

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Point-of-view through TriEye The View on a country road: one shield lens with a small rear-view mirror set into its lower left corner, a car visible in the mirror, handlebars and bike computer below
Cycling Rear-view awareness

Getting Used to a Mirror in Your Glasses: What the First Rides Really Feel Like

By TriEye

Every drawback reviewers list about a mirror in the lens - the adaptation period, the head tilt, hoods vs drops, the left mirror and fogging...

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A road cyclist in a helmet and rear-view mirror sunglasses paused on a country road on a cold late-autumn morning, looking toward the camera
Cycling Gifts Rear-view awareness

Cycling Gear Worth Buying on Black Friday (and What to Skip)

By TriEye

An honest guide to Black Friday cycling gear: which categories genuinely discount, which are theatre, and how to check any deal in sixty seconds.

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Road cyclist in a matte black helmet and sport wraparound sunglasses on a quiet rural road in low autumn morning light
Cycling Rear-view awareness

The Best Cycling Sunglasses in 2026: An Honest Guide (and the Feature Most Brands Miss)

Michael Fongen
By Michael Fongen

Seven cycling sunglasses ranked honestly on optics, coverage and fit - including the rear-view feature almost every brand leaves out.

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Cyclist wearing everyday prescription glasses with a small clip-on rear-view mirror at the outer edge of the frame, stopped on a quiet country road
Cycling Rear-view awareness

Cycling With Prescription Glasses: Every Real Option Compared

Michael Fongen
By Michael Fongen

The four genuine options for cyclists who wear glasses - your own frames, contacts, prescription sport sunglasses, or an insert - compared honestly on cost,...

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A person wearing The Classic everyday rear-view mirror sunglasses on a city sidewalk in golden-hour light
Cross-cutting Rear-view awareness

The Classic: Everyday Sunglasses That See Behind You

Michael Fongen
By Michael Fongen

The Classic is a normal-looking pair of sunglasses with a rear-view mirror built into the lens, so you see behind you in everyday life without...

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Runner on a quiet suburban street in blue pre-dawn light, wearing TriEye single-shield sport sunglasses with the rear-view mirror built into the lens
Rear-view awareness Running

Running in the Dark: Visibility and Awareness for Dawn, Dusk & Night

Michael Fongen
By Michael Fongen

How to run safely before sunrise or after dark: where reflective material actually belongs, how many lights you need, which lens to wear in low...

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Road cyclist in plain unbranded kit and helmet wearing TriEye The View sport sunglasses with an in-lens rear-view mirror, riding a quiet road at golden hour
Cycling Rear-view awareness

The 7 Best Bike Mirrors in 2026: Bar-End, Helmet & In-Lens, Ranked Honestly

Michael Fongen
By Michael Fongen

An honest, rider-to-rider ranking of the seven best bike mirrors of 2026 - bar-end, helmet, and in-lens - with field of view, stability, price, and...

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Road cyclist on a dusty gravel mountain road in Norway wearing TriEye The View sunglasses with an integrated rear-view mirror
Rear-view awareness Story

Why We Built TriEye: The Crash That Started It

Michael Fongen
By Michael Fongen

Founder Carsten Juell Fongen was hit from behind by his own son on a dusty Norwegian mountain road in 2016 - and had the idea...

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