Only tried on indoors. I recently purchased these, but I didn't end up using them when I intended to, so I'm selling them. Size is 26-27cm. I usually wear 26.5cm sneakers, and these fit perfectly. ーHEXMAX INSOLE™️ー High-rebound, multi-layered cushion with a hexagonal structure. It absorbs impact during walking and supports propulsion with its resilience. It provides a stable feel without excessive sinking, and is characterized by being comfortable to wear for long periods. Achieving the best comfort in SUBU history, it is equipped in the new generation models including "VAMP". ◇SPEC Material: Upper/Wool Polyester, Insole/Polyester (brushed), Sole/Synthetic Rubber Country of Origin: China Size: 26.5cm