It's a small section inside the shoe that can expand up to 5 millimeters to prevent numbness. Without any extension system, the toes end up on top of each other and get numb. Thanks to this innovation, you won't have to end your ride before you're done ever again.
Garneau Carbon XZ Road Shoes - Black, Women's, 41.5
Our Copal BOA road cycling shoes take one of our best values in the industry and add even more features. The Copal BOA shoes have been upgraded to include our award-winning X-Comfort Zone technology. The X-Comfort Zone allows the foot to swell up to 5 mm while riding, thus eliminating hot spots and discomfort. It also accommodates wider feet and eliminates bunions over time.
Louis Garneau Copal Boa Shoes 38 White
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Louis Garneau Men's Carbon XZ Shoe - Moosejaw
It's a small section inside the shoe that can expand up to 5 millimeters to prevent numbness. Without any extension system, the toes end up on top of each other and get numb. Thanks to this innovation, you won't have to end your ride before you're done ever again.
Garneau Carbon XZ Road Shoes - Black Women's 40
Louis Garneau Men's Tri X-Lite III Shoe - 44, White
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