3:Sixteen Aero Calf Sleeve™ (pair)

SAVE UP TO 12 WATTS

Athletes can now benefit from the watt saving technology found in our record-breaking Aero-Bridge Undervest. Compared to aero socks, the extra calf coverage gives even greater aerodynamic and time savings. Saving up to 12 watts, these Calf Sleeves are the best investment on the market, with the highest £/watt aero gain.

DEVELOPED ALONGSIDE THE
WORLD’S GREATEST 

Utilising the same technology as
our Aero-Bridge Undervest, the 3:Sixteen Calf
Sleeve is born. Developed at the Silverstone
Sports Engineering Hub and Derby Velodrome alongside
the World’s greatest engineers and riders. 

The Calf Sleeves were first introduced to the sporting World during the Sub7 / Sub8 challenge, with the design and name 3:Sixteen a nod towards the 3-hour 16-minute bike leg that was achieved to help guide Joe Skipper to a sub 7-hour Ironman. The team comprised of some of the World’s best time-trialists, including Alex Dowsett and recently crowned UCI Hour Record holder Dan Bigham, who crushed the opposing team to deliver one of the most incredible time trials of all time.

PATENTED AERO-BRIDGE TECHNOLOGY – HOW IT WORKS

By stretching smooth fabric over ribbed fabric (raised ridges form a suspension of material like a suspension bridge) to disrupt the airflow by the ridge and then further alter it by the suspended fabric, causing minuscule air particles to enhance displacement of the boundary layer. 

• Up to 12 Watt saving.
• Designed for the Sub7 Sub 8 record-breaking challenge.
• Dan Bigham designed and enhanced.
• Precisely patterned to maximise aero gains.
• Aerodynamic materials.
• TT and track proven.