Louis Garneau Men's Tri X-Speed White Cycling Shoes Ergo Air II reinforced nylon outsole with patented multivent system: Provides excellent rigidity and increased ventilation HRS-80 system: Provides heel support Synthetic leather and mesh upper: Provides comfort, good support and is breathable Ergo Air Cool Stuff blue insoles for warm temperatures: Allow for thru-ventilation Strap at the heel for easier transition