No, as you simply pinch in the nose bridge this moves the frame up and out of the way in aero position in cycling.

Yes, because we have different sizes of lenses; this gives three size options.

1. Shield lens if you do NOT want the bottom Rim option.

2. Rim lens, this fits narrow to standard face, for a tight fit.

3. NEW large lens, with option to wear with bottom Rim or NO bottom Rim ALL in one lens.

All ZiZU frame designs are gender neutral. Make a unique statement with your choice of style and colour!

Yes, the NZ2 small frame model measures 121 mm from temple to temple. Standard frame width is 130 mm.

Yes, the Z-Shield,OPZand XZ2measure 133-135 mm from temple to temple. Standard frame width is 130 mm.

All of our sunglasses are adjustable to your face. You can adjust the nose bridge by pinching it to have them sit higher on your face, or widen it to have them sit lower on your face. The arms (temples) are also adjustable - you can bend them inward to make them fit smaller or outward to fit wider. We recommend (if you can!) trying on the glasses at an expo so we can help you find the best fit.

We have a selection of lenses for different conditions or personal preferences. The lenses range in darkness from a category 0-2 or 1-3; 0 being clear and 3 being the darkest (for direct sunlight) lens filter. You can read about our tech specs here.

Yes! Lenses can be purchased separately. Don't see them in the store? Send us an email.

Yes, changing lenses takes just seconds. Step by step instructions, as well as a video are posted here.

Yes, ZiZU can accommodate prescription lenses in two different ways: 

1. Optical inserts for XZ1, OPZ and Z-Shield The clip (purchased from ZiZU and filled by your optometrist) snaps to the inside of the nose piece. This allows the wearer to benefit from ZiZU Optics tinted lens technology. The clip can be removed from the frame to use the sunglasses by themselves.

2. Prescription insertfor NZ2 The insert (purchased from ZiZU; filled and tinted by your optometrist) easily locks into the frame replacing the existing tinted lens. The frame and prescription insert may be purchased either with or without the purchase of a ZiZU tinted lens.

No, lens scratches are not covered under warranty. You can read more about warranties on our warranty page.

When the glasses are adjusted properly, they shouldn’t fog up.  If you find your glasses do fog, it’s because there is not enough air flow (too close to face).  Simply pinch the nose bridge in so the glasses will sit more away from the face. 

Warm water is all you will need to clean your lenses.  You can also use dish soap if the lenses don’t feel clean enough.

Category is used to describe how much light is filtered out.

Category 0: Clear lens

Category 2: Lens with a lighter tint.  Great for cloudy, dull conditions, late afternoon. Preferred when in and out of bush (dark to light); fast speeds demanding optimum definition; those who do not want dark coverage, or are not used to wearing sunglasses.

Category 3: Lens with a darker tint.  Sensitive eyes, full sun.

Contrast is the ability to make images appear 'muted' or really 'pop'.

High Contrast: Full range of tones with strong colours and textures. HD or Photochromic lens.

Low Contrast: Not a lot of differences between light and dark tones.  Colours are Flatter. Red Category 3 lenses.

Tint is the colour you see when looking through the lens; whether amber, grey, orange, etc.

We refer to our lenses by two colours: what they look like when looking at them (appearance), and the colour you see looking through them (tint).

HD Amber Category 2 Lens
Lens: Amber category 2
Tint:  Amber (Great Contrast)
Conditions: Cloudy to Sunny
Sport: Multi-Sport lens, ideal for cycling, mountain biking, triathlon, running, skiing.

HD Blue Category 2 Lens
Lens: Blue category 2
Tint:  Bright Amber (Amazing Contrast)
Conditions: Cloudy to Sunny
Sport: Multi-Sport lens, ideal for cycling, mountain biking, triathlon, trail running, skiing.

HD Purple Category 2 Lens and Category 3
Lens: Purple category 2
Tint:  Rose (Contrast) Amazing all around lens
Conditions: Cloudy to Sunny
Sport: Multi-Sport lens, ideal for cycling, mountain biking, triathlons, running, skiing.

Blue Photochromic Category 0-2 Lens
Lens: Transition / photochromic, transitions from category 0-2, light clear blue to dark blue.
Tint:  Yellow (Amazing Contrast)
Conditions: Night to Sunny
Sport: Multi-Sport lens, ideal for skiing, cycling, mountain biking, triathlon, running, trail running.

*Blue Photochromic Category 1-3 Lens
Lens: Transition / photochromic, transitions from category 1-3, light clear blue to dark blue.
Tint:  Yellow (Amazing Contrast)
Conditions: Cloudy to Sunny
Sport: Multi-Sport lens, ideal for cycling, mountain biking, triathlon, running, skiing.

Brown Polarized Category 3
Lens: Brown, category 3
Tint: Amber (Contrast) 
Conditions: Sunny to overcast, CUTS Glare (on water and roads)
Sport: Multi-Sport, ideal for canoeing, kayaking, running, cycling.

Smoke Polarized
Lens: Grey/black, category 3.
Tint: Smoke ( Grey smoke, flat) No contrast
Conditions: Sunny to overcast, CUTS Glare (on water and roads)
Sport: Multi-Sport, ideal for canoeing, kayaking, cycling, running.

Blue Polarized
Lens: Blue Polarized, category 3.
Tint: Blue (Grey blue, flat) CUTS Glare (on water and roads)
Conditions: Sunny to overcast, cuts the glare.
Sport: Multi-Sport, ideal for canoeing, kayaking, cycling

Red Polarized
Lens: Red, category 3, Darkest lens we sell.
Tint: Blue (Grey blue, flat) No contrast
Conditions: sunny to overcast, CUTS Glare (on water and roads)
Contrast: Blue, flat.
Sport: Multi-Sport, ideal for canoeing, kayaking.

Red Category 3
Lens: Red, category 3.
Tint: Blue (Grey Blue-No contrast) Great lens for sensitive eyes and on water.
Conditions: Sunny to light overcast.
Sport: Multi-Sport, ideal for canoeing, kayaking, cycling, triathlon, running, skiing.