Assos - Ultraz Winter Socks P1 - Unisex - Black Series - 2026

Assos - Ultraz Winter Socks P1 - Unisex - Black Series

The highest insulation for the most extreme winter conditions, the latest Ultraz Winter Sock provides additional warmth with a higher cuff for more coverage.

High insulation. High breathability. Both are critical for comfort in the coldest winter conditions, because they preserve warmth and eliminate the risk of internal moisture turning into a clammy chill turning into frigid, stinging, ride-ending discomfort. The Ultraz P1 achieves both, with triple-layer insulation in key areas that breathes well. The yarns are also infused with merino wool, which has natural odor-resistance and Ð in the event precipitation or road spray gets past your winter booties Ð stays warm, even when wet. The cuff height, up to 18cm (7in), reduces the risk of gaps between layers.

FEATURED FABRICS

A blend of synthetic fibers and wool that maintains the best qualities of both for a breathable textile with stretch-and-return properties, odor resistance, warmth while wet, and extreme insulation.

CONSTRUCTION/FIT

160-needle construction eliminates seams and wraps in lightly compressive support, preventing slumping or restrictive pinching. Triple layers on the toe and midfoot boost insulation on the most exposed areas.
 

About ASSOS:

ASSOS of Switzerland’s mission is to provide innovative, technically outstanding cycling apparel with meticulous, lean design.

Since creating the first ever Lycra® cycling shorts in 1976, the company has developed a number of innovations that have pointed the way for the evolution of cycling wear – most of its innovations are now industry standards. Today, ASSOS proudly provides its Total Cycling Comfort to riders in more than 30 countries.

MyTriathlon is proud to have been chosen to stock the prestigious ASSOS range of clothing and accessories. If you have any sizing or specific product queries, call us on 0207 183 4116, or get in touch via WebChat.