Galibier Mountain Trekking Boots Brown Size: Unknown Outsole length: Approximately 26.5 cm, width: 10 cm. Estimated size: 25-25.5 cm. I received these from my cousin, but I haven't had a chance to wear them, so I'm offering them to someone who will! These are used items. Please check the condition in the photos. There is not much wear on the heels. Also, because insoles were used, the inside of the shoes is quite clean.