Sidi T-5 Air Triathlon Cycling Shoes: Politex Upper, Carbon Sole (£185)
The Sidi T-5 Air is a triathlon-specific road cycling shoe with a carbon composite sole and a perforated upper. We have not tested it. This page collects what Tredz lists and the current price.
Available now: SIDI T-5 Air Triathlon Road Cycling Shoes — £185.00 at Tredz (listed RRP £210.00), correct at time of writing, 14 October 2026.

What the retailer lists
- Upper: Politex, which Sidi chooses for triathlon shoes because it resists ripping, stretching and fading. This Air model adds perforations for breathability.
- Sole: Twelve Carbon Composite sole, described as lightweight and optimally stiff.
- Heel: Sidi’s heel cup for a snug fit on the bike, and a replaceable heel pad.
- Origin: handmade in Italy.
- Colours: two colourways, a polygonal design and a muted black.
The listing gives no weight, closure type or cleat pattern in the text, so check the product page for the closure and sole drilling before you order.
Where it fits for triathletes
The points below are our reading of the listed features, not test results.
- Triathlon design. Sidi sells this as a triathlon shoe. Tredz does not say what that changes about the fit or the closure.
- Price. At £185.00 it sits £25.00 below the £210.00 RRP.
- Breathability. Sidi says the perforations add breathability over earlier models, which counts in a warm T1.
Where to buy
Tredz lists the SIDI T-5 Air at £185.00 at time of writing, and the link below goes to the same product page.
Related guides
See also our best triathlon bike shoes guide, the Sidi Tri-Sixty review, the Fizik Transiro Hydra review and how to break in cycling shoes before race day.
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