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NANO FLEX PRO RACE BIBSHORT

The original Omloop knee-length thermal short now in full Nano Flex 3G fabric for all conditions from dry to cold to wet.

1 2 3 4 5  4  (3 reviews)

Color: BLACK

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4520521-010

Product features

  • Nano Flex 3G fabric is water repellent, stretchy and warm thanks to the luxuriously soft brushed inside
  • Reduced seams for comfort and to prevent water from coming in during wet rides
  • Knee-length cut for extra warmth that doesn't require a gripper elastic
  • Mesh bibs don't add warmth to the upper body so you can dress for the conditions
  • Progetto X2 Air seamless seat pad for long hours in the saddle
  • Nano Flex 3G fabric is water repellent, stretchy and warm thanks to the luxuriously soft brushed inside
  • Reduced seams for comfort and to prevent water from coming in during wet rides
  • Knee-length cut for extra warmth that doesn't require a gripper elastic
  • Mesh bibs don't add warmth to the upper body so you can dress for the conditions
  • Progetto X2 Air seamless seat pad for long hours in the saddle
  • Temperature:12°C - 20°C / 54°F - 68°F
  • Fit:Race
    info
    Fit tooltip

What It Is

The original Omloop knee-length thermal short now in full Nano Flex 3G fabric for all conditions from dry to cold to wet.
Progetto X² Air Seamless

MAXIMUM TECHNOLOGY FOR SUPREME COMFORT.Constructed in two components, each dedicated to a specific purpose, that together create the most comfortable seat pad on the planet.Skin Care LayerSeamless, bacteriostatic layer made to adapt to the shape of your body and saddle without any folds in the fabric. Cushioning LayerSeamless Integrated Technology (S.I.T.) Perforated Viscous Comfort Zone.

Rosso Corsa

Our Rosso Corsa label is only applied to the highest-level products we make. Every thread and fiber, every curve and contour is obsessed about. Rosso Corsa represents a categorical breakthrough in cycling innovation and the meticulous craftsmanship you expect from Castelli’s performance-enhancing apparel.

Nano Flex

Exclusively engineered by Castelli. We take our thermal fleecy stretch Thermoflex fabric and coat it with millions of tiny nanofilaments to create the most water-repellent fabric finish ever. Drops of water stay as spherical balls on top of the fabric or bounce off the fabric without leaving a trace.

PRO RIDERS

Garment supplied to the Soudal Quick-Step Team riders.

You could call this a "convergence" product. A few years back we pioneered the first Omloop thermal short, inspired by pro riders cutting off their knee warmers to just the bend of the knee at the Omloop Het Nieuwsblad on a brisk sunny morning. We set about making a bibshort cut right to the bend of the knee and realized that we could make it without a gripper elastic and that the extra 10 centimeters of fabric add a lot of warmth. Those first Omloop shorts were made for cool, dry conditions, like the race that inspired them, using our Thermoflex fabric. Fast-forward to 2020 and the new third generation of our Nano Flex fabric is as soft, stretchy, breathable and warm as our Thermoflex fabric, so now we can make this short ideal for cool and dry conditions, but it's also excellent on wet days. It's still a pro tool: this short is identical to the model supplied to Soudal Quick-Step Team.
Reviews

Here is what our customers think about it

4

1

2

3

4

5

3 reviews

brilliant

01/01/2023

These shorts are excellent. The Tutto Nano version is also very good. Buy these and pair them with leg warmers and you are warm enough on all but the coldest days (you have a double layer of warmth on your thighs). They do not ride up. I am 178cm, 70-72kgs and wear a medium. I have a damaged leg and so my thighs are different sizes and they still do not ride up. I use them more as winter tights than shorts, but i have raced in them on cold days and they are very good, but it leaves you knee exposed. The bib fabric is delicate so you need to be careful. It they improved the bib material it wold be 5 stars. I have two pairs and would happily buy another.

Nick H

1

2

3

4

5

4

You need these…but don’t know it

20/02/2023

Performance is 5 star, just price that makes it four star. The bib is quite delicate, but other than that they are superb. Autumn and spring wear them on their own. I wish that they were a few cms longer for that. Superb for racing in the off season. However, where these win out over everything is with knee or leg warmers. That gives your thigh double the warmth of normal tights. If it is really cold this is my go to choice, bin shorts and full length leg warmers. There is no need for tights in the winter. I think this design is likely to be replaced with a winter Free aero version, so get these ones while they still make them. The version down has leg grippers which make it harder to pull up leg or knee warmers if they slip. I would recommend these to any serious cyclist who rides all year. If you see them on offer get a couple of pairs.

Nick H

1

2

3

4

5

4

Close to perfection

05/06/2023

Close to perfection. Fabric and pad are top notch, as the cut. Only gripe is that the legs are actually quite short, shorter than those of the Free Aero RC for instance.

Please Castelli, make those shorts with legs as long as on the discontinued Omloop !

Raphaël

1

2

3

4

5

4

brilliant

01/01/2023

These shorts are excellent. The Tutto Nano version is also very good. Buy these and pair them with leg warmers and you are warm enough on all but the coldest days (you have a double layer of warmth on your thighs). They do not ride up. I am 178cm, 70-72kgs and wear a medium. I have a damaged leg and so my thighs are different sizes and they still do not ride up. I use them more as winter tights than shorts, but i have raced in them on cold days and they are very good, but it leaves you knee exposed. The bib fabric is delicate so you need to be careful. It they improved the bib material it wold be 5 stars. I have two pairs and would happily buy another.

Nick H

1

2

3

4

5

4

You need these…but don’t know it

20/02/2023

Performance is 5 star, just price that makes it four star. The bib is quite delicate, but other than that they are superb. Autumn and spring wear them on their own. I wish that they were a few cms longer for that. Superb for racing in the off season. However, where these win out over everything is with knee or leg warmers. That gives your thigh double the warmth of normal tights. If it is really cold this is my go to choice, bin shorts and full length leg warmers. There is no need for tights in the winter. I think this design is likely to be replaced with a winter Free aero version, so get these ones while they still make them. The version down has leg grippers which make it harder to pull up leg or knee warmers if they slip. I would recommend these to any serious cyclist who rides all year. If you see them on offer get a couple of pairs.

Nick H

1

2

3

4

5

4

Close to perfection

05/06/2023

Close to perfection. Fabric and pad are top notch, as the cut. Only gripe is that the legs are actually quite short, shorter than those of the Free Aero RC for instance.

Please Castelli, make those shorts with legs as long as on the discontinued Omloop !

Raphaël

1

2

3

4

5

4
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