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Castelli Velocissimo IV Short - Men's

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sale $74.99 $109.95

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  • 3XL
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Velocissimo IV Short

As its name suggests, the Castelli Men's Velocissimo IV Short helps you move as swiftly as possible down the road, all without uncomfortable pressure points or chafing holding you back. It provides a superb fit with its Pro Dry Soft fabric patterned to move stitching away from sensitive areas that lead to annoying irritation. Smooth flatlock stitching lies flat against your skin, so it won't lead to irritation or chafing as you pedal at a swift cadence on training rides and grind it out across long distances.

Castelli eliminated the elastic leg bands that tend to dig into your skin, replacing them with raw-cut leg endings with vertical silicone grippers to ensure the bottoms don't ride up and require mid-ride adjustments. The Doppio waistband provides additional stretch around your stomach, also ensuring a secure, non-slip fit with its wider design that better distributes pressure.

It's finished with Castelli's KISS Air chamois, which tapers in thickness from 4 to 14 millimeters from the sides to rear, giving you optimized padding and support where you need it and greater flexibility to pedal and maneuver your bike. This chamois is comprised of dual-density, dimpled foam that rapidly draws perspiration off your body where it can readily evaporate and prevents odor build-up with its anti-odor treatment.

  • Cycling short focused on riding comfort, go-fast efficiency
  • Pro Dry Soft fabric is stretchy, supportive, quick-drying
  • Anatomical patterning eliminates chafing and irritation
  • KISS Air chamois balances plush support with flexibility
  • Chamois has dimpled microfiber surface to speed up drying
  • Doppio waistband distributes pressure and prevents slipping
  • Raw-cut leg endings with silicone bands for a secure fit
  • Item #CST00K7

Pro Dry Soft, Doppio waistband
KISS Air chamois
Chamois Thickness
4 - 14 mm
Leg Gripper
raw-cut leg ending with silicone vertical gripper
reflective heat-transfer viz strips
Claimed Weight
168 g
Recommended Use
road cycling
Manufacturer Warranty
1 year

Tech Specs

What do you think about this product?


>Rating: 1

Sizing is completely off

I returned this product before using it
Runs small
Size Bought
6` 4"
228 lbs

I am normally a XXL/XXXL ...i purchased the XXXL...i can barely fit one thigh into it....VERY SMALL...thanks but no thanks...will stick with the bibs

i came to say the same. i'm a 33/34 waist and took a chance and bought the 3xl version of these shorts. they barely fit. idk what's going on at castelli. are their users really this tiny? i should be able to parachute in 3XL shorts...

>Rating: 4

Large is not large enough

I returned this product before using it
Runs small
Size Bought
5` 10"
195 lbs

I wear a large in the Castelli I have at home and in the Castelli Endurance 2 model. Couldn’t get my little buttocks into this Large. I assume the quality is great!

>Rating: 4

HIgh Quality, Poor Sizing

I returned this product before using it

The shorts are great, but run small even by normal Castelli standards & size chart. I wear an XL in Castelli bottoms (including Velocissimo winter tights & Volo shorts), but these in XL felt about 2 sizes smaller. For ref, I'm 5' 8", 170 lbs, 35 inch waist.

>Rating: 5

First class, but doublecheck your sizing

I've used it once or twice and have initial impressions
Runs small
Size Bought
6` 2"
164 lbs

Getting back into road riding after a couple decades on the trails, and bought this first pair of road shorts after a lifetime in Pearl izumi. I can;t speak to the advances PI has made since then, but these are astonishingly high quality that make my budget MTB liners laughable. Chamois, fabrics, grippers, seams... everything is well thought out and aids performance. A couple hours on the trainer in the saddle goes by like a breeze with no fidgeting or numbness like before. I wash them in the shower with me and they're dry 12 hours later just hanging on a hook indoors. I was concerned about sizing like everyone is, so my gear expert said to go with XL where I would normally wear a M in street clothes (6' 2", 164 lbs, 32 in waist) and it was spot on. Wouldn't change a thing. I'll be looking for another pair for my upcoming birthday!