Fly up the hill and enjoy a new level of confidence on the descent with the Nordica Unlimited LT 130 DYN Ski Boots. The Unlimited LT 130 drops weight by switching from PU to bio-based Grilamid® plastic, as well as a newly developed 3D Light Performance Fit TF liner, but doesn't back down in the support area like some other boots with a nominal 130 flex. This is a pretty drastic overhaul of the old Strider design, with a superior walk mechanism that rivals many pure touring designs. A new top contender in the "most powerful boot you'd actually tour in" category.