Koo Alibi Large Black Matt Photochromic Green

Koo Alibi Large Dark Blue Matt Photochromic Red

Koo Alibi Large Harbor Blue Matt Copper Mirror

Koo Alibi Large White Matt Fuchsia Photochromic

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KOO Alibi Large Sunglasses

Q: How does the Large fit compare?

The Large size is wider and longer than Regular—approx. 149 mm frame width, 155 mm frame length, and 110.5 mm temple length.

Q: What lenses are available?

ZEISS performance tints and Photochromic options with 100% UV protection; vented lens design helps reduce fogging.

Q: Is the frame lightweight and durable?

Yes—Alibi uses a Grilamid frame with rounded arms for a secure fit and soft-touch nose pads for comfort.

Q: Can I use prescription inserts?

Yes—compatible with the KOO Optical Clip (sold separately) so you can add RX.

Q: What activities is Alibi made for?

Road and gravel riding and general training where wide coverage, clear optics and ventilation matter.

Price range: $239.99 through $309.99

Colour: No selection

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Product Highlights

KOO Alibi Large half-frame performance sunglasses with ZEISS® lenses, vent ports, and a light, durable Grilamid® frame. Compatible with the KOO Optical Clip for RX.

Large fit: ~149 mm frame width (155 mm frame length; 110.5 mm temple)
Lenses: ZEISS® or Photochromic options; 100% UV protection; anti-fog/vented
Details: rounded arms for secure fit; soft-touch nose pads
Use: road, gravel, everyday training

Frequently Asked Questions

How does the Large fit compare?

The Large adds overall size versus Regular—about 149 mm frame width and 155 mm frame length (temple ~110.5 mm).

What lenses are available?

ZEISS® performance tints and Photochromic options (both 100% UV). Vented lens design to help with anti-fog performance.

Is the frame lightweight and durable?

Yes—Alibi uses a Grilamid® frame with rounded arms for a secure fit and soft-touch nose pads for comfort.

Can I use prescription inserts?

Yes—compatible with the KOO Optical Clip (sold separately) to add RX.

What activities is Alibi made for?

All-day road or gravel riding and general training where wide coverage, clear optics and ventilation matter.

Free Shipping $100+

Free shipping on all orders over $100 (before tax)
All orders are processed within 1 business day
Orders ship from our warehouse in Guelph, ON
Free shipping ranges from 2-6 business days depending on location within Canada
Expedited shipping options (which ranges from 1-3 business days) are available at checkout upon entering your shipping address
We ship with most major couriers, including Canada Post, UPS, Fedex, Purolator, Canpar, and ICS
Full shipping details can be found in our shipping policy

Returns & Exchanges

If your NOMAD purchase isn't quite right for you, you may return it for a refund within 30 days from delivery
Return items must be unused and accompanied by all original packaging, with both product and packaging in an undamaged state and all product tags intact
Refunds will be issued to your original form of payment within 2-5 business days of receipt of items at our distribution centre
We cannot accept returns or exchanges of the following items:
- Nutrition products
- Gift cards
- Water bottles
- Personal care items, such as body creams and lotions
- Items marked as clearance or final sale
Return shipping fees are the responsibility of the customer
Full return details can be found in our return policy

Overview

Alibi – Large is KOO’s bigger-fitting take on their minimal half-frame shield, built for wide coverage and a locked-in fit on fast road or gravel days. The rimless lower edge keeps your field of view clear in the drops, while vent ports in the lens help reduce fogging on climbs and humid rides.

Optics & lens options

Born from KOO’s partnership with ZEISS®, Alibi lenses deliver crisp contrast and 100% UV protection. You can choose standard ZEISS tints or Photochromic options that adapt VLT with changing light, all designed for clear vision and quick transitions from sun to shade.

Fit & frame construction

The Large size increases total width and length for broader faces (approx. 149 mm frame width, 155 mm frame length, 110.5 mm temple). A tough, lightweight Grilamid® frame with rounded arms keeps the glasses stable against the helmet, and soft-touch nose pads fine-tune comfort.