Gore-Tex GTX AKU Trekking Boots US6.5 / UK4.5 23.5cm Purchased 7 years ago at Ishii Sports, along with B+ insoles. Used for 3 one-night mountain climbs. They're leather boots, so they're a bit heavy, but the size is a good fit for those with narrow feet. There was no discomfort in the heel, toes, or ankles, but I gave up mountain climbing due to an injury. They have Vibram soles, and are still in good condition, so they can be worn many more times. For those who don't mind used items.