Assos Mille GT Eisenherz Ultraz Winter Bib Tights S11

The Assos Mille GT Eisenherz Ultraz Winter Bib Tights S11 are designed for the most demanding cold-weather cycling conditions, combining winter-grade protection with a more flexible and breathable construction than traditional heavy softshell tights. Built for endurance riders, they balance warmth, weather resistance, and pedal efficiency in freezing, wet, or harsh winter environments.

The design uses a two-layer construction system that pairs Assos’ stormproof SPHERE Ultra softshell with their RX thermal fabric. The SPHERE Ultra material is placed on the front, legs, and hips to provide windproof and water-resistant protection, while maintaining a more elastic and breathable feel than conventional winter shells. This outer layer is attached in a free-floating manner along only one edge, allowing greater freedom of movement and reducing restriction during pedaling.

Underneath, RX thermal fabric delivers insulation, breathability, and moisture management, helping regulate body temperature during long winter rides. This combination ensures warmth without excessive bulk, even during sustained efforts in cold conditions.

Key Features:

• SPHERE Ultra Softshell Panels: Windproof, water-resistant protection with enhanced elasticity and breathability
• RX Thermal Fabric: Insulating, breathable inner material for cold-weather comfort
• Two-Layer Free-Floating Design: Reduces restriction and improves pedaling freedom
• Winter-Optimized Construction: Designed for harsh, wet, and cold riding conditions
• Breathable Protection System: Balances insulation with moisture and heat regulation