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.
Louis Garneau Mens Tri X-Speed XZ Shoes [1487333-020-43]
Fizik Tempo Overcurve R4 Cycling Shoes – all3sports
Louis Garneau Mens Tri X-Speed XZ Shoes
Louis Garneau Men's Tri X-Lite III Cycling Shoe
Pearl Izumi Tri Fly Pro Cycling Shoe
Louis Garneau Chrome II Cycling Shoe
Leatt Protection Shoe DBX 1.0 Flat - Fitworks Moncton
Buy Louis Garneau, Mens, Tri X-Speed Xz Shoes and other Shoes at . Our wide selection is eligible for free shipping and free returns.
Louis Garneau, Mens, Tri X-Speed Xz Shoes | Shoes
Louis Garneau Tri X-Speed Xz Cycling Shoes - Podium Multisport
Men's Cycling Shoes — Enduro Sport Inc
Louis Garneau Men's Tri X-Lite III Cycling Shoe
Louis Garneau Tri Air Lite Triathlon Cycling Shoes – Mack Cycle & Fitness
Louis Garneau Tri X-Speed Xz Cycling Shoes – all3sports
Louis Garneau Men's Platinum XZ Shoe - Moosejaw