The Fizik Artica X5 (and its updated counterpart, the Terra Artica GTX) is a premium, fully insulated, waterproof winter mountain bike shoe designed to keep your feet warm and dry during freezing trail, gravel, and mountain bike rides. It features a robust mid-cut construction that protects against cold air, slush, and heavy mud.

Key Technical Specifications

• Weatherproof Barrier: Built with a fully waterproof, breathable membrane. Newer models are upgraded to a premium GORE-TEX Koala insulated membrane for enhanced performance.
• Thermal Insulation: Lined with an ultra-soft brushed fleece interior layer, paired with a unique winter footbed that includes an insulating aluminium foil underside to reflect body heat.
• Closure Systems:
  • The classic Artica X5 utilizes a clean external waterproof zipper over an internal quick speed-lace system.
  • The updated GTX version features a tactical layout combining a rugged ankle Velcro strap with a lower L6 BOA dial for on-the-fly macro-adjustments.
• Outsole Composite: Features a stiff carbon-reinforced nylon midsole (stiffness index of 5) wrapped in a high-traction, deep-lugged rubber tread for reliable grip when walking or hiking slick trails.
• Cleat Interface: Standard 2-bolt mountain bike configuration with a generous cleat pocket that effectively clears mud.

This shoe is engineered for winter riding, offering advanced insulation, weatherproofing, and reliable grip, making it a top choice for serious mountain bikers.