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.
Triathlon Shoes — Playtri
Louis Garneau Men's Carbon XZ Shoe - Moosejaw
The Tri Fly 7 is a fully-featured shoe designed to take your triathlon ambitions to the next level. The wide-mouth opening and notched main strap make it easy to set these shoes up for speedy transitions, while the double heel loops make pulling them on and off a breeze. Once on the bike, a stiff sole helps you put the power to the pedals. The mesh upper is airy, quick-drying, and comfortable with or without socks.
Pearl Izumi Men's Tri Fly 7 Shoe - 47 - Black
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 Men's Copal Boa Shoe - Moosejaw
Fizik Tempo Overcurve R4 Cycling Shoes – all3sports
Garneau Tri X-Speed III Triathlon Shoes – Triathlete
PEARL iZUMi Men's Tri Fly Elite v6, White/Black, 42.0
Since transition might be considered triathlon's fourth discipline, we make it fast and easy with the Tri X-Lite's wide feet entry and double
Louis Garneau Tri X-Lite iii Cycling Shoes
Louis Garneau Tri X-Speed IV Shoe - Men's - Men