Like this site? Help us to make it better.


Bioracer Vesper Bibshort Soft



Well-made, comfortable shorts for long, lazy days with a unique approach to comfort breaks
BibZip works for comfort breaks
Don't squeeze your thighs up
Comfortable pad
Rear zip strengthening can get sweaty

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

What the scores mean

Good scores are more common than bad, because fortunately good products are more common than bad.

  • Exceptional
  • Excellent
  • Very Good
  • Good
  • Quite good
  • Average
  • Not so good
  • Poor
  • Bad
  • Appalling

Bioracer's Vesper Bibshort Soft is ideal for women looking for performance and comfort without also getting excessive compression around the thighs. Soft fabrics and a quality chamois – combined with the unique BibZip feature – make these great shorts, and ideal for any length of ride.

> Buy these online here

This is the second pair of Bioracer shorts I've tested recently, and the Vesper feature the same chamois and BipZip as the Epic Bibshorts I reviewed last month. The key differences are the main fabric and the approach to leg grippers, plus the loss of some of the compression and breathability the Epics offer.

2020 Bioracer Vesper Bibshort Soft - front.jpg

These shorts offer little in the way of compression, as the fabric around the hips and thighs is exceptionally soft and giving. They're very well suited to long, lazy rides and touring – partly because they lack the feel or breathability levels of racier designs.

2020 Bioracer Vesper Bibshort Soft - cuff.jpg

Bioracer calls the fabric in the leg grippers Power Eyelet, and it's the stuff found in some of their skinsuit tops. It's intended to be compressive but not be constrictive, but for me, it wasn't quite enough. The legs ride up – not to the point of discomfort, but enough to form a couple of pleats at the top.

2020 Bioracer Vesper Bibshort Soft - riding.jpg

The effect is worse when teamed with leg warmers; this fabric is silky smooth, and doesn't grip well against other materials.

As always with Bioracer, check the size charts carefully as every collection has its own chart. Your size in the Epic collection may be different to the Vesper collection (or your usual sizes).

2020 Bioracer Vesper Bibshort Soft - straps back.jpg

BibZip, Bioracer's comfort break solution, is a zip up the back, and it's easily accessible. Once unzipped, the shorts can be pulled down and under your bottom.

I've being using this system for over two months now and, I have to admit, it's grown on me. In short (no pun intended), you squat as low as possible, grab each side of the zip and yank the shorts down and under your bum. Holding your torso as close to your thighs as you possibly can makes getting them down (and back up again) easier.

2020 Bioracer Vesper Bibshort Soft - back.jpg

I still need to lower the zip on my jersey post-pee as the straps need repositioning, but I've got it down to a fine art and it's now super quick.

Bioracer hasn't neglected to reinforce the fabrics around the zip, and adds a generous zip guard to protect your lower back. There's a downside though – all the extra fabric means the back is a lot sweatier than regular designs. It's covered by your jersey pockets, too.

2020 Bioracer Vesper Bibshort Soft - chamois.jpg

Our test shorts featured Bioracer's Vapor Uni Pad (designed for high mileages), though they can also be purchased with a 3D Race pad. The Vapour is more durable than the Race, but offers lower breathability and weighs more.

In hot weather the pad doesn't draw moisture as efficiently as some performance pads, for example the Gore C7 Long Distance bibs, but even so, after five solid hours in the saddle I found no discomfort or irritation.

2020 Bioracer Vesper Bibshort Soft - straps front.jpg

Instead of being sewn into the shorts, the Vapor pad is pressed onto a textile panel and then sewn in. This means no extra material, so less mass. The pad and shorts move well with the body and as you move in and out of the saddle.

> 42 of the best cycling bib shorts — get comfy on longer rides

Systems for comfort breaks are quite personal – what suits one doesn't necessarily suit another – but generally come with losses either in performance or comfort.

Lara really rated the system in Iris's Signature Bibs, which are £19 more than the Vespers. Rapha's Souplesse Detachable bibs are also an option but the price – £195 – is likely to put many off. Gore's C5 Women's bib shorts, meanwhile, offer a zip and squat approach for £120. I'd say all of these make the Vespers look very attractively priced.

On the other hand, Polaris's E-motion bibs are evidence that a quick pee doesn't have to cost the Earth – they're £54.99, though I can't comment on their quality.


The Vesper Shorts will appeal to women wanting to avoid their thighs being squeezed like sausages, and they're high-quality bibs that enable super-quick, hassle-free comfort breaks. You'll be back on your bike enjoying their comfort and excellent chamois in no time... albeit with a slightly sweaty lower back.


Well-made, comfortable shorts for long, lazy days with a unique approach to comfort breaks

If you're thinking of buying this product using a cashback deal why not use the Top Cashback page and get some top cashback while helping to support your favourite independent cycling website test report

Make and model: Bioracer Vesper Bibshort Soft

Size tested: X Large

Tell us what the product is for

Bioracer tells us, "The Vesper Bibshort Soft is a nice example of the way we work with existing materials. We rethink the whole concept of a short until it fits the needs of the rider. It is the short of choice for every woman looking for comfort, wearability and good looks."

Tell us some more about the technical aspects of the product?

-Pre-shaped and sculpted around the body in a cycling position

-Seamless integration of grippers

-Reduced amount of seams and materials

-Lightweight, minimalist construction

-Vapor Uni pad

Rate the product for quality of construction:

Plenty of attention to detail where the BibZip is concerned, in order to strengthen surrounding fabrics.

Rate the product for performance:

Reinforcing fabrics around the zip means heat can build up around the lower back and is slow to dissipate. The leg grippers are not as effective as those on the Epic Bibshorts.

Rate the product for durability:

Appear very well made.

Rate the product for fit:

Perfect when you get on your bike.

Rate the product for sizing:

Be sure to check the charts.

Rate the product for weight:
Rate the product for comfort:

Had concerns the zip might irritate my rather bony lower spine, but it didn't!

Rate the product for value:

How easy is the product to care for? How did it respond to being washed?

Very easy.

Tell us how the product performed overall when used for its designed purpose

Comfortable with decent breathability, and not limited to hot weather riding.

Tell us what you particularly liked about the product

The fit and cut is just right.

Tell us what you particularly disliked about the product


How does the price compare to that of similar products in the market, including ones recently tested on

These are cheaper than many equivalents with comfort break systems, such as Iris's Signature Bibs (£119) Gore's C5s (£120) or Rapha's Souplesse Detachable bibs at £195. They undercut Bioracer's own Epics too, which are £40 more, but you lose some compression and breathability for that. Polaris's E-motions put them all to shame at only £54.99, though...

Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Use this box to explain your overall score

Superb construction, a durable, quality chamois, soft and giving fabrics for zero-bulge, plus a quick comfort break solution... despite the overheating consequence of the latter, they're still very good for under £100.

Overall rating: 8/10

About the tester

Age: 39  Height: 173cm  Weight: 64kg

I usually ride: Road  My best bike is: Carbon road.

I've been riding for: Over 20 years  I ride: Most days  I would class myself as: Expert

I regularly do the following types of riding: commuting, touring, club rides, general fitness riding, Getting to grips with off roading too!

Emma’s first encounters with a road bike were in between swimming and running. Soon after competing for GB in the World Age Group Triathlon Championships in Edmonton in 2001 she saw the light and decided to focus on cycling. 

After a couple of half decent UK road seasons racing for Leisure Lakes, she went out to Belgium to sample the racing there and spent two years with Lotto-Belisol Ladies team, racing alongside the likes of Sara Carrigan, Grace Verbeke, Rochelle Gilmore and Lizzie Deignan. Emma moved from Lotto-Belisol to Dutch team Redsun, then a new Belgian team of primarily developing riders, where there was less pressure, an opportunity to share her experience and help build a whole new team; a nice way to spend her final years of professional racing. 

Since retiring Emma has returned to teaching. When not coercing kids to do maths, she is invariably out on two wheels. In addition to the daily commute, Emma still enjoys getting out on her road bike and having her legs ripped off on the local club rides and chain gangs. She has also developed an addiction to touring, with destinations including Iceland, Georgia and Albania, to mention just a few. There have also been rare sightings of Emma off-road on a mountain bike…

Latest Comments