Blivet Quilo X4 Fatbike Boots

The 2025 version – QUILO X4 – marks a major evolution. Completely redesigned, it pushes the limits of winter cycling boot design. Our goal: increase thermal protection without adding weight or compromising its unique style. The result: a more mature, more technical shoe, while remaining the lightest in its category.

Thermal Performance & Protection

• 3M™ Thinsulate™ 400 g insulation — double the previous generation, providing enhanced warmth while keeping the legendary lightness of the QUILO.
• New Blivet Sports THEREX membrane (10K mm / 10K g/m²) — laminated to the inner fabric, offering exceptional waterproofing and optimal breathability during intense activity.

The Vibram® Wolftrax® sole ensures exceptional grip, enhanced stability, and power transfer without compromise. The LISZT AIR TOEBOX provides a generous 4E+ toe volume, keeping your feet warm and away from cold surfaces. The dual independent lacing system allows precise adjustment, while the calf strap (21 cm total height) effectively blocks snow.

• 3M™ Thinsulate™ 400 g insulation for maximum warmth
• New THEREX membrane (10K / 10K) for perfect waterproof/breathable balance
• 360° rubber band for superior durability
• Internal heel counter for improved foot stability
• New cuts and surface materials, smooth lines, and technical details

• Dual quick-lace system with automatic lock
• Tongue and heel loops for quick on/off
• Multi-layer removable insole: 70% natural wool
• Calf strap + gaiter loop
• 360° reflective strips
• Compatible with 2-bolt MTB pedals
• Weight: 1378 g (size 43, pair)
• Sizes: EU 37 – 48