Propa 2 Straps

The Propa 2 Straps are a dual-strap power system designed to completely change how your boot connects to your leg. Instead of relying on a single strap, this system lets you separately tension the liner and the shell, creating a more precise, controlled, and responsive feel.

The inner strap wraps the liner, helping to smooth pressure across your shin and eliminate movement, while the outer strap is built for pure energy transfer into the shell. The result is a cleaner flex pattern, stronger rebound, and more direct control through the ski.

This is one of the most noticeable upgrades you can make to a ski boot—especially if you’re chasing better responsiveness, reduced shin bang, and a more connected feel at speed.

Key Features

• Dual strap system – independently tensions liner and shell for precise fit
• Improves energy transfer for more direct, responsive skiing
• Reduces shin bang by smoothing pressure across the shin
• Creates a cleaner flex pattern with more consistent boot response
• Static outer strap construction delivers immediate rebound (no lag)
• Universal compatibility with overlap and cabrio (3-piece) boots
• Adjustable mounting positions to fine-tune alignment and fit
• Hardware included for installation

Bottom line

If your boots feel:
• inconsistent through the flex
• lacking power or rebound
• or disconnected from your skiing