Pearl Izumi PRO Octane bib short review

Their best yet, but seriously costly

Our rating 
4.0 out of 5 star rating 4.0
GBP £149.99 RRP | USD $275.00

Our review

A near-perfect fit and outstanding chamois but they are extremely expensive
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Pearl Izumi’s new PRO Octane bib shorts fit noticeably tighter and more Euro-like than other similarly sized bibs we’ve tried from the brand in the past, with a cycling-specific cut that is absolutely spot-on for the intended roadie market. They’re definitely not the most comfortable things to wear when standing upright but everything settles in quite nicely while on the bike with nary a scrap of extra fabric to bunch up and chafe.  


The high quality materials feel cosy on the skin and transfer moisture well, too, and the lower half offers a distinctly smooth and luxurious feel. Open mesh is used for the bib straps and both top and bottom breathe very well in warm conditions. Seams are intelligently – and rather unconventionally – placed to move them away from rub-prone areas like the front of your hips. 

As is becoming popular these days, leg grippers have been replaced by a wide elastic band with a row of silicone dots inside to prevent the shorts riding up, and a laser-cut edge further enhances the minimal feel. However, the material used isn’t terribly elastic: the band is very tight when you put the shorts on but there’s still a very slight gap on the back of the leg when the legs are bent on the bike. 

Pearl Izumi’s new stretch PRO 4D chamois is absolutely superb with outstanding long-day comfort and perfect placement in the short. Its body-hugging form is made up of three separate parts that allow for a more complex shape than one- or two-piece inserts, while cushy multi-thickness and multi-density padding makes for a not-too-thick feel. The chamois is a tad on the big side so won’t suit riders who prefer ultra-minimal pads. 

Pearl Izumi are clearly going for a clean black, white and red look here but the execution is a bit polarising – we heard enough ‘Shamu’ comments to make us start attempting backflips and wonder if we’d relocated to Orlando. In addition, some thought the bold red leg bands were a bit too much and we couldn’t help but notice that the white side panels on the shorts and the matching jersey don’t actually match in appearance or texture. Still, it’s one of the most attractive kits to come out of Pearl Izumi in quite some time.

Unfortunately, this bib’s only major flaw is also the one most likely to keep consumers from buying it: the shorts retail for a stratospheric US$275 – £150 in the UK – (and the matching jersey another US$225), making for a jaw-dropping US$500 total.


A bargain the P.R.O. Octane bib shorts certainly aren’t but those willing to spend the cash will be rewarded with a near-flawless fit, top-notch materials and a distinctive look – if only because few others will be able to afford it. 

Product Specifications


Name P.R.O Octane Bib Short (09)
Brand Pearl Izumi

Description UPF 50 Sun Protection
Clothing Sizes Available L M S XL
Available Colours Black/White
Lining Fabric Chamois
In-Seam Length 9.75