- polyester
- Profile: Asymmetrical
- Sole: 4.2 mm TRAX high friction rubber
- Rand: VTR rand (thicker at toe)
- Upper: Synthetic (Synthratek VX upper)
- Midsole: 1.2 mm full-length midsole
Anatomically engineered parts and design provide the Kronos with a comfortable fit without sacrificing performance. It uses a single buckle plus cinch-pull strap closure for convenience and a customizable fit for the modern climber making it one of the best flat-lasted technical all-around shoes on the market.