From Superfeet:

Up to 11% better acceleration on the ice, unrivaled edge control and exceptional energy transfer. Designed for tight turns, crossovers, quick starts and hard stops, Superfeet CARBON Pro Hockey is a genuine game changer.

• DURABLE CONSTRUCTION
  Superfeet insoles keep their shape, delivering reliable support and comfort for up to 12 months or 500 miles, whichever comes first
• MOISTUREWICK™
  With long-lasting odor control
• EVOLYTE™ CARBON FIBER STABILIZER CAP
  Responds to compression, springing back to its original shape
• HEEL-TO-TOE PROFILE
  The elevated heel increases the surface area in contact between your foot and the midsole
• VENTING SYSTEM
  The vent holes line up with the perforations in most hockey skates improve air circulation and breathability
• FLYBRIDGE™ Loads and channels energy and absorbs vibration for quick starts, crisp stops & tighter turns
• AEROLYTE™ FOAM
  Specifically blended for performance - delivers more cush in a thinner, lighter foam
• HEEL CUP
  Helps foot settle comfortably in the skate, minimizing friction, hot spots & blisters