Aero Calf Sleeves™ 22PLUS Descente+All As with the first version

As with the first version

Designed for training

Engineered for athletes who demand comfort and confidence

This super lightweight

Our Thunderbirds Collection only uses the latest

Aero Calf Sleeves™ 22PLUS Descente+All As with the first versionUnrestricted, Aerodynamic and Time Saving Used by the record breaking HUUB Wattbike Team. Triathletes can now benefit from the watt saving technology found in our record breaking aero socks, but without the restrictions laid down by the UCI. The extra calf coverage, compared to the socks gives even greater aerodynamic and time savings. Also Ideal for non UCI time trial events. Calf guards can be worn in triathlon competition under your wetsuit and for