Its 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 tend to get numb.
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Garneau won the prestigious Eurobike award for the X-Comfort Zone technology featured in this shoe. This patented and innovative design allows the shoe to stretch to accommodate B to D+ foot widths thanks to a ventilated elastomer-spandex insert. The X-Comfort Zone creates a dynamic, non-constrictive fit for the foot’s natural toe splay, which improves power, reduces injuries, and creates unsurpassed comfort. Style and performance can go hand in hand, the Platinum shoes are proof of that.
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Louis Garneau Men's Tri X-Speed IV Cycling Shoes
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