Aero Calf Sleeves


Our aero calf sleeves will probably be the cheapest, easiest seconds you can make up over your next triathlon or time trial. Aero socks have been tested to save around 5 watts at 48km/h, but they are regulated by UCI to come no further than half way up the lower leg. Triathlon and non-UCI time trial are free from UCI regulations so we’ve taken the same aero sock technology all the way up to below the knee!

Time savings of 60+ seconds for a 70.3 triathlon and 2+ mins over a full distance Ironman can be expected vs bare legs. Every watt counts.

Washing & Care

Aerodynamic material
Designed specifically for triathlon and time trial
Sticky silicone gripper
Fits 95% of lower leg sizes
Makes wetsuit removal faster during T1


70% nylon, 27% polyester, 3% spandex

Washing & Care

• Machine Wash Cold
• Hang To Dry
• Do Not Dry Clean
• Do Not Bleach
• Do Not Use Fabric Softener
• Do Not Iron

Created with Fabric.js 4.2.0

No minimums, no catch—just free shipping for all Aussies.

Created with Fabric.js 4.2.0

50% off crash replacement kit from all of our range. Hang loose!

Created with Fabric.js 4.2.0

Owned and designed in Fitzroy, Victoria Australia. Support Local.

Not convinced?

Watch the video to hear Josh Portner — marginal gains pioneer, owner of Silca and previously Technical Director at Zipp — speak to the gains to be found in just your socks.

"𝘐𝘵'𝘴 𝘳𝘪𝘥𝘪𝘤𝘶𝘭𝘰𝘶𝘴 𝘩𝘰𝘸 𝘣𝘪𝘨 𝘢 𝘥𝘦𝘢𝘭 𝘴𝘰𝘤𝘬𝘴 𝘤𝘢𝘯 𝘣𝘦."

Someone purched a14 minutes ago from Newport, VIC
Someone purched a15 minutes ago from Wellington Point, QLD
Someone purched a16 minutes ago from Kingston, ACT
Someone purched a3 minutes ago from Mornington Penninsula, VIC
Someone purched a4 minutes ago from Thorngate, SA
Someone purched a5 minutes ago from Newcastle, NSW
Someone purched a6 minutes ago from Port Macquarie, NSW
Someone purched a7 minutes ago from Fisher, ACT
Someone purched a8 minutes ago from Broadbeach, QLD
Someone purched a9 minutes ago from Blue Haven, NSW
Aero Calf Sleeves

Aero Calf Sleeves