3:Sixteen Aero Calf Sleeve™ - Black/White (pair) Size:S designed to give you razor

designed to give you razor sharp vision in different light conditions

Cetearyl alcohol

Active 4D sonar array

It actively improves kicking technique and alignment in the water

With extra room in mind for your hair to fit comfortably

3:Sixteen Aero Calf Sleeve™ - Black/White (pair) Size:S designed to give you razorSave 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