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Castelli Mens Velocissimo 5 Bibtight
Castelli Mens Velocissimo 5 Bibtight
Castelli Mens Velocissimo 5 Bibtight
Castelli Mens Velocissimo 5 Bibtight
Castelli Mens Velocissimo 5 Bibtight
Castelli Mens Velocissimo 5 Bibtight
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Castelli Mens Velocissimo 5 Bibtight 5
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Castelli Mens Velocissimo 5 Bibtight 1
Castelli Mens Velocissimo 5 Bibtight 2
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Castelli Mens Velocissimo 5 Bibtight 4

Castelli Men's Velocissimo 5 Bibtight


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MSRP: $149.99
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The Cold-Weather Tight Without Winter Weight

Minimalist meets performance in the Castelli Velocissimo 5 Bibtight. Thanks to extreme comfort Thermoflex fabric along with fleeced Nano Flex stretch-woven lower leg, this tight delivers on splash protection for those especially rainy days.

Thermoflex fabric is the softest, stretchiest winter-tight fabric for lasting comfort. The lower leg gets the Nano Flex fleeced stretch-woven fabric, which is both warm and highly water repellent. The raw edge ankles are zipper-free to reduce bulk, so the tight remains easy to put on and take off. The KISS Air² seat pad and mesh bibs keep your bum and upper body happy, while large reflective detailing keeps you visible.

The ideal tight for most of your winter riding, the Velocissimo 5 is focused on comfort for riding in mild to cool conditions. Mesh bib straps deliver comfort through upper-body ventilation, which is perfect for layering in cold temperatures.


  • Thermoflex fabric from knee to waist for warmth and comfort
  • Nano Flex stretch-woven fabric with brushed fleece inside at lower leg
  • KISS Air² seat pad
  • Mesh bib straps
  • Zipperless ankle to reduce bulk inside shoecovers
  • Reflective inserts on thighs for visibility on back and sides

Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We'll cover the shipping both ways for US customers if you need a different size and/or color of this product. Returned product must be in new condition with all labels and packaging. Free exchanges apply only for product in stock or available for backorder.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Size Chart



Leg Type: Full Length 

Style Type: Tights 

Black/Silver Reflex - Small

Mfg PartNum: M4521517010-2 

Black/Silver Reflex - Medium

Mfg PartNum: M4521517010-3 

Black/Silver Reflex - Large

Mfg PartNum: M4521517010-4 

Black/Silver Reflex - X-Large

Mfg PartNum: M4521517010-5 

Black/Silver Reflex - 2X-Large

Mfg PartNum: M4521517010-6 

Dark Gray/Silver Reflex - Small

Mfg PartNum: M4521517030-2 

Dark Gray/Silver Reflex - Medium

Mfg PartNum: M4521517030-3 

Dark Gray/Silver Reflex - Large

Mfg PartNum: M4521517030-4 

Dark Gray/Silver Reflex - X-Large

Mfg PartNum: M4521517030-5 

Dark Gray/Silver Reflex - 2X-Large

Mfg PartNum: M4521517030-6 


Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Reviewed 12/1/2022
by Anonymous
Cycling Enthusiast
Southern Maine
Value Rating
Overall Rating
Great cold weather tight

These are my first set of bibtights, and I've been very happy with them so far. I've worn them in rides as cold as 37F and been plenty warm for two hours. I don't go tend to go longer than that this time of year, but I've been glad to extend my outdoor riding season. The material seems a little slipperier on my saddle than my other bibs, but I'm not sure if that is just due to lower humidity in the fall air--it hasn't impacted my rides, but I have noticed it at times. I'm curious about the longevity of the stretch ankle openings (instead of zippered openings), but time will tell on that.

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Reviewed 11/20/2022
by Steve F.
Cycling Enthusiast
Saugus, MA
Value Rating
Overall Rating
Very comfortable with the Kiss Air2 chamois.

I own an older pair of bib tights with the Kiss Air pad and the Air2 is definitely a improvement, I didn't hate the first version but this one closes the gap with the Progetto pad considerably - seems a little bit softer with better fabric covering it. As usual Castelli's design and quality is excellent even on their less expensive offerings. The only real noticeable difference for me when compared to their higher-end bibs is the shoulder straps not being laser cut but they don't seem to dig in while riding so not really an issue, it might be more noticeable for taller cyclists. The temperature range Castelli shows on their website (46-61�F) is probably accurate for most people but I've worn them on a ride with temps around 40 and stayed warm enough, once the sun started getting low I felt the cold creeping in a bit so I wouldn't wear them in temps below 40. I also appreciate the fact that there are no zippers on the ankles, I typically wear overshoes and would much rather have only one zipper as two will sometimes create discomfort.

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Reviewed 9/8/2022
by trancerider2
Cycling Enthusiast
Missoula, MT
Value Rating
Overall Rating
7 of 7 customers found this review helpful.
Love it, the Kiss Air2 pad is much better than my PI bibtights

I am 5' 8" and a pretty fit 175 lbs or so (not a super lean bicyclists build but not fat either), I bought an XL and it fits great. I mainly bought these for cool, wet mountain biking due to a very rainy spring this year AND to try out Castelli bottoms. I typically wear these when it's 40-60 degrees out and they are just fine, I think I could easily, comfortably ride these in to the 30's (and plan to do so this fall). My absolute favorite thing about these bibtights tho is the Kiss Air2 pad, it is so comfy, I wish I would've purchased these years ago. I have been riding Pearl Izumi bottoms for a decade and they are so-so comfy wise, I just thought they were the industry standard so I didn't think there was better gear out there. Anyhow, here's where the Castellis are so comfy: I live in a valley and most of the fun MTB rides are an hour(s) long climbs on logging roads. With the PI gear I start to get a buttache about 1/2 hour in, but with the Castelli gear I can climb a couple of hours without being forced to constantly change my seating position or stand up on the pedals just to give my bum a break. I've already bought some more Castelli bottoms and they are also very good.

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Reviewed 12/22/2022
by B''ham Biker
Overall Rating
Nice tights

Good fit taking into account Castelli sizing. 2XL is just right.

As usual, the chamois is ergonomically correct. The only drawback is the tightness around the ankles when putting them on and removing them. They are comfortable and warm enough down to the high 30's.

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Reviewed 12/22/2022
by Anonymous
Cycling Enthusiast
Value Rating
Overall Rating
Decent padded tights. Size up 2x.

As usual with Castelli you can't beat the design and quality, but they are incredibly small, so bought XXL rather than large. I'm 6' tall and 185 and these fit great.

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Reviewed 2/17/2022
by Ripcity Ryan
Portland, OR
Overall Rating
3 of 5 customers found this review helpful.
Hard to go wrong.

Warm, comfy, good stretch, price is okay, nice chamois, look good, mellow branding, appropriate reflection, easy to put on despite no zippers at leg opening. Haven't ridden them in rain yet but previous Nanoflex items worked well in moderate precipitation. Bonus: if you're a socks-on-the-outside type no zipper = no chafing.

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