Quilo X4 Winter Cycling Boot - Men's

Since its launch in 2018, the QUILO from Blivet Sports has become the ultimate choice for winter cyclists seeking comfort, warmth, and performance.

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.

Recommended Temperature: down to -20 °C / -5 °F

The QUILO X4 is designed for automatic MTB “clipless” pedals, but is also compatible with platform pedals.

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

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.

Comfort & Control

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.

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)

Thermal Performance & Protection

With double the amount of 3M Thinsulate insulation (400g), enhanced warmth is provided while keeping the legendary lightness of the QUILO boots.

And featuring Blivet Sports' new THEREX membrane, laminated to the inner fabric, exceptional waterproofing and optimal breathability are achieved for sessions of intense activity.

Comfort & Control

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.

A dual independent lacing system allows for precise adjustment, while the calf strap prevents snow ingress into the boot.

Quilo X4 Winter Cycling Boot - Men's

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Thermal Performance & Protection

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