The inner boots were aftermarket, so I only wore them a few times and they're practically unused. They haven't been heat-molded. Inner boots alone are expensive (around 20,000-30,000 yen), so how about these as replacements for worn-out inner boots? The boots themselves have only been used for one season and are in relatively good condition. Dynafit Mercury Backcountry Ski Boots Size: 26.5cm Lightweight and sturdy boots. The walk mode has a wide range of motion, 60 degrees, and excellent walking performance.