Here's what other sites are saying:
So you originally bought your Black Diamond Freeride Power Series boots for touring only, but now that they've become your favorite boots, you want to step them into a set of DIN-compatible alpine bindings' No problem; just grab yourself a set of Black Diamond's Alpine Sole Blocks, swap them out for the stock blocks that came with your boots, and get on your merry way.
Description of Black Diamond AT Sole BlocksBlack Diamonds AT Power Series ski boots come with Interchangeable Sole Blocks. Sole Blocks come in two sizes Small for size 25.5 and smaller boots and Large for size 26 and larger.AT Sole Blocks come stock on the Method and Shiva, are interchangeable on our AT Power Series boots and are Dynafit binding compatible.FeaturesInterchangeable sole blocks
- US Outdoor Store
Simple and convenient slide-on two-bolt block system for heel and toe. Size Range: 23.0-25.5 (S) 26.0-31.5 (L)
- Teton Village Sports
Increase the compatibility of your Black Diamond ski boots by sliding on the AT Sole Block. Attach it securely to your boot with the 4-bolt system. When the snow gets thin and the skis come off, rely on the traction provided by the rubber lugged soles with tech inserts. Compatible with 2012/2013 and earlier Black Diamond Factor and Shiva boots.
- Mountain Gear
Simple and convenient slideon twobolt block system for heel and toe for Black Diamond Ski boots Converts the sole of the boot from an Alpine ski sole to an Alpine Touring Ski soleSize Range 230255 S260315 L