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Specifications

Collection Summer 2026
Color specification Black blue
Condition New model
Size I
Supplier item number P13.60.791.18/I
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Description

The Assos Ultraz Winter Sock is designed for the most extreme winter conditions.

With triple insulation and a high 18 cm cuff, you stay warm, dry, and protected from the cold and wind.

The combination of merino wool and synthetic fibers provides breathability, warmth, and odor control.

Perfect for avid cyclists who don't want to compromise in freezing temperatures.

The Assos Ultraz Winter Sock is the ultimate winter sock for cyclists who want to keep performing even in freezing temperatures. Designed for the harshest conditions, this sock combines maximum insulation with optimal breathability—a rare balance that is essential for long-lasting comfort in the cold.

The Ultraz Winter Sock uses an advanced triple insulation layer on the most exposed areas, such as the toes and midfoot. These layers retain heat without compromising breathability, so moisture and perspiration are efficiently wicked away. This keeps your feet warm and dry, even during long rides in wet or windy conditions.

The merino wool fibers used offer natural warmth and odor resistance, and retain their insulating properties even when wet. Thanks to the 160-gauge construction, the sock has a seamless, slightly compressive design that provides support without pinching or slipping.

With a high 7-inch cuff, the Ultraz offers extra protection against drafts and prevents gaps between your socks and leg warmers. The combination of synthetic fibers and wool provides the perfect balance of elasticity, warmth, and durability—exactly what you need for winter rides that demand everything from you.

Key features:
-Maximum insulation for extreme winter conditions
-Triple insulation layer on toes and midfoot for extra warmth
-Made from merino wool blend: warm, breathable, and odor-resistant
-160-gauge construction for seamless fit and light compression
-18 cm high cuff prevents drafts and cold openings
-Breathability prevents moisture buildup and overheating
-Stays warm even when the sock gets wet

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RRP 28,95

25,95

You save 3,-

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Customers rate Triathlongear24 4.5/5
60-day return period
Free delivery from €50,-
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Personal advice from our specialists

Do you have a question about this product, sizing, the material, or anything else? Our specialists are happy to help.

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Fitting in Volkel, with personal advice

Would you like to see or try on this product first? Then visit our store in Volkel (Brabantstraat 16, 5408 PS, North Brabant), The Netherlands.

Tip: please check in advance (by phone +31(0)413-256800, or via [email protected]) whether this product is in stock in our store.

Everything about delivery time, shipping and exchanges

Questions about delivery, delivery times or returns? We’ve listed everything clearly for you.

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Curious how this wetsuit feels in the water? Come test it during our wetsuit test days. See all dates and info via wetsuit test days.

Tip: check in advance whether this product will also be available during the wetsuit test days.

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Specifications

Collection Summer 2026
Color specification Black blue
Condition New model
Size I
Supplier item number P13.60.791.18/I
Warranty 2 years

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