Fizik Vento Infinito Knit Carbon 2 Shoes Review: Race Stiffness, Everyday Comfort

Overview

The Vento Infinito Knit Carbon 2 sits just below Fizik’s flagship R1 in the range, and for most triathletes that’s exactly the sweet spot: a stiffness index of 10 out of a possible 12 — enough for hard efforts and race day — wrapped in a knit upper that’s noticeably more forgiving on foot shape than a full performance race shoe.

Key Features

• Weight — Around 283g per shoe in a size 45, competitive against most race shoes at this price point.
• R2 carbon outsole — an engineered carbon-fibre layup rated a stiffness index of 10 out of 12, near the top of Fizik’s entire range.
• Knit upper — a thin, pliable Microtex-and-knit construction that flexes with the foot for a more forgiving fit than Fizik’s stiffer race-focused uppers.
• Closure — a single Boa IP1 micro-adjust dial for on-the-fly tightening, including mid-ride adjustments during long rides or transitions.

Verdict

Reviewers consistently praise the combination of race-level stiffness with genuine day-long comfort — a pairing that’s harder to find than it sounds, since most brands trade one for the other. The main criticism is limited width adjustability for narrower feet, since the knit construction is tuned toward a more accommodating fit rather than a snug performance last. For triathletes doing back-to-back long rides and bricks, the comfort trade-off is the right one.

Buying Tips

• True to size for most riders — the knit upper has some give, so avoid sizing up unless you have wide feet.
• A wide-fit version exists in the wider Vento Infinito Carbon 2 range if the standard last still feels tight.
• Pair with a mid-weight sock for transitions — the knit upper breathes well but offers less structure than a stiff-shell race shoe.

Care and Maintenance

Rinse off road grime and sweat after wet rides, air dry away from direct heat, and check the Boa dial periodically for grit build-up that can affect the micro-adjust mechanism over time.

Check price on Tredz — £199.99 at time of writing (RRP £349.99).

This article contains affiliate links. If you purchase through these links, we may earn a small commission at no extra cost to you. This helps support The Triathlete.