Our verdict


The T-5 Air by Sidi is the kind of shoe that could be used to go from swimming to bike sections of the competition. But the T-5 Air now features an improved fit and a more stylized upper via its matte finish and graphics. If you are looking for an efficient tri shoe, then the Sidi T-5 Air might be worth the try.


  • Remarkable quality
  • Lightweight
  • Breathable
  • Excellent power transfer
  • Efficient retention system
  • Value for money
  • Adequate heel support


  • Slightly flexible sole
  • Narrow toe box

Who should buy Sidi T-5 Air

The updated version of the T-4 Air Carbon shoe, the Sidi T-5 Air, is a must-have if you are looking for a triathlon shoe that will save your time during triathlon splits.

Sidi T-5 Air top view

Sidi T-5 Air: Comfortable, quality cycling shoe

Plenty of Sidi T-5 Air users loves the shoe's incredible comfort.

This triathlon cycling shoe also has an excellent quality, says several owners. The material used ensures that this cycling shoe from Sidi doesn’t lose its rigidity as it ages.

Sidi T-5 Air side profile

It can also retain its color for a long time and resist laceration, ripping, and stretching.

Air in, water out

The nylon used on the Sidi T-5 Air will not absorb water. 

It also features a super-perforated upper that maximizes drainage and ventilation of the shoe. Many wearers affirm that this is breathable.

Sidi T-5 Air perforate upper

T-5 Air offers stable and efficient pedaling

According to some triathletes, the Sidi T-5 Air has good power delivery. However, a few cyclists who are used to super-stiff soles say this shoe is a bit flexible.

Sidi T-5 Air outsole

With the multi-step system of the T-5 Air, it is ensured that dissipation of power is minimized, allowing efficient power transfer.

Sidi T-5 Air heel

The heel cups also contribute to efficient pedaling by keeping the feet stable.

The efficient retention system of this Sidi cycling shoe

A couple of reviewers mention that the retention system works efficiently and allows easy on and off for faster transitions.

Sidi T-5 Air closure

Since the ratcheting system is too slow for adjusting, the shoe has a two-strap closure system that allows easy and quick adjustment.

Sidi T-5 Air low top and pull tab