Spatz Windsock2 UCI Legal Aero Oversocks - White

When Spatzwear launched the Windsock2 some years ago, the brand created a brand new niche.

Since then, the Windsock2 has been worn to victory in Tour de France stages as well as many of the Classics races (including the Tour of Flanders, Paris Roubaix and Milan San Remo), not forgetting the UCI World Gravel Championships.

For 2026, Spatzwear has developed an over sock that pushes the boundaries even further...
The Windsock PRO shares many of the fabrics and features of the brand's legendary Windsock2 but adds a new internal gripper which has been in development for 2 years. The new vertical grippers offer a secure grip on the leg without any extra compression.

Testing at the SSE Hub wind tunnel (George Fox Cycling Solutions) indicated that the Windsock PRO is more aerodynamic than any other similar product tested by the brand. Here are the findings from the tunnel:

• CdA Run Average Difference vs Wind Socks: -0.0002
• Delivers improved aerodynamic performance over Wind Socks.
• CdA reductions are slightly greater across most yaw and speed angles.
• Differences range from: 0 to -0.0005 in most yaw-speed combinations.
• Summary: Wind Sock Pro is the most aerodynamically efficient of the three models, delivering consistent and deeper CdA reductions than the baseline Wind Socks.

Conclusion when using Wind Socks as the baseline:

• Wind Sock Pro is the top performer, offering the best aerodynamic advantage.
• All three models perform well, with Wind Sock Pro leading by a small but consistent margin.
• These results suggest that the Windsock PRO is the optimal choice for riders seeking the best aerodynamic performance in varying wind conditions without wanting or needing a full overshoe.

These are the over socks worn by Mathieu van der Poel in Omloop Het Nieuwsblad in 2026. At the time of this event, Spatzwear sent one pair of Windsock PRO to Alpecin-Premier Tech for evaluation by the riders. The results speak for themselves...

Developed for when you need immunity from the wind or protection from the elements when speed is paramount. The new Windsock PRO has a waterproof, stretchy, sleek fitting main panel with a super aerodynamic lycra leg section.