Castelli launches new Free Aero Race 4 Bib short

Italian sportswear brand Castelli released the latest version of its pro-level bib short, the Aero Race 4, to the general public this week.

The Aero Race 4 is an update to the lightweight, minimalist, aero shorts worn to Tour de France and Giro d’Italia victory by Team Sky’s Geraint Thomas and Chris Froome.

I’ll be honest, the updates feel pretty subtle, but that’s not surprising considering every iteration of the Free Aero shorts since the first in 2007 has performed well in our tests and, probably more importantly, under the backsides of pro race winners.

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Wearers of the previous model will notice a new strap construction — the stripe mesh used is super-thin and featherweight to aid breathability. These are the sort of straps that ruche up when you pull them out of the drawer, but they do lie completely flat and comfortable once on.

Elsewhere, Castelli is, unsurprisingly, continuing with its dual-layer Progetto X2 pad although this has been updated and is now the Progetto X2 Air Seamless. The top layer is a seamless, anti-bacterial fabric that isn’t attached to the pad below, which is thicker where you need it under the sit bones. This means that the pad rather than your skin can move around, reducing friction on delicate areas.

Castelli Aero Race 4 Bibshort details

You can read more at Cyclingnews.com