Assos Ultraz Winter FUGU Socks

The Assos Ultraz Winter FUGU Socks are an ultra-insulated winter cycling sock engineered for riders who demand maximum warmth, breathable comfort, and reliable protection in the harshest cold-weather conditions. Constructed from a premium wool blend with strategically placed insulation, these socks deliver exceptional thermal performance while maintaining softness and moisture control for long winter rides.

Designed specifically for extreme cold, the FUGU socks incorporate targeted insulation across the toes and front of the foot where exposure is greatest. Inspired by some of the warmest and most protective winter equipment in ASSOS history, the construction creates micropockets of warm air beneath booties to enhance heat retention without compromising breathability. The result is dependable warmth that remains comfortable during sustained efforts in freezing conditions.

The extended 31cm cuff provides additional coverage and helps eliminate gaps between socks and winter tights, creating a more complete barrier against cold air and road spray. Soft against the skin and built for demanding winter use, the Ultraz Winter FUGU Socks are designed to keep riders comfortable through the toughest seasonal conditions.

Key Features:

• Ultra-Insulated Wool Blend Construction – Premium thermal fabric delivers exceptional warmth with soft, breathable comfort
• Targeted Cold-Weather Protection – Additional insulation across key exposure zones enhances heat retention where it matters most
• Warm Air Pocket Design – Engineered structure creates insulating air pockets beneath booties for improved thermal efficiency
• Extended 31cm Cuff Coverage – Tall cuff helps seal the transition between socks and winter tights for greater protection from the elements