Aero Calf Guards Rule 28

Aero Calf Guards

Regular price £24.99

Triathletes rejoice!

Rule28 Aero Guards are designed specifically for triathletes, bringing aerodynamic savings to yout bike leg. Utilising the same technology as our aero socks, but unbridled by UCI rules, the increased length of AeroGuard over our socks brings extra aerodynamic savings. 

The absence of material covering the foot also mean they are legal to wear under your wetsuit during the swim. This feature saves you even more time in T1 as it's one less thing to put on before your bike leg.



We use shoe size to determine the best guard to fit you. This tends to be the simplest way of doing things with a metric most people are familiar with.

Size Conversion UK/EU

S:     3.5-5 = 36-38

M:     5.5-7 = 38-40

L:     7.5-9.5 = 41-43

XL:   10 -12 = 44-47

If you have any questions regarding sizing, please contact us at and we will do our best to help you out.

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