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Castelli Presto Due Men's Shorts

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Item # CST2584

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Item # CST2584


Contrary to popular belief, quality doesn't require a refinance on your mortgage. In fact, with pieces like the Castelli Presto Due Shorts, you'll put down more base miles in comfort than you will dollar bills.

For the construction, Castelli made the Presto Due from its Affinity Lycra fabric. This material features the hold and support that we know from Lycra, however, Affinity provides more stretch and elasticity than many other Lycra iterations. You'll also find that the material is incredibly light and soft -- 190 gram fabric weight, actually. This converts to around 140 denier, which, in the real world, translates to a slightly compressive fit and high thread count per centimeter. So, this means that your muscles will be protected from the fatigue-causing effects of road vibration and oscillation. But, why is the high thread count important? In a word, abrasion. By compacting the threads, Affinity becomes less course, lighter weight, and more gentle on the skin. Additionally, the fabric has been designed to be an effective moisture manager. So, during long, hard exertions, Affinity will pull moisture from the skin and transport it to the material's quick-drying surface.

In terms of fit, Castelli designed the Presto Due shorts around the cycling position. Essentially, this means that the multi-paneled pattern has been cut on a contour -- you'll notice this when the shorts are merely hanging. So, the shorts' anatomic design allows for a full-range of movement without the risk of fabric pinching, bunching, or chafing.

And extending the Presto's range of comfort, Castelli included its venerable Kiss3 chamois. For a point of reference, Castelli only makes two road inserts, the Progetto X and the Kiss 3. So, it's evident that this chamois receives Castelli's unwavering vote of confidence. This is further reinforced by Castelli engineering-in many of the Progetto's key traits, only at more cost-effective price. Starting at the surface, the Kiss3 uses a skin-care layer comprised of a bacteriostatic fabric that conforms to the body without folding. The material supports airflow, and aids in evaporation. The second layer is multi-density foam with continuously variable thickness where you need it, not where you don't. So where is it placed? Well, Castelli made sure to maximize thickness at the highly-sensitive ishial and to moderate thickness at the perineum pressure regions. Additionally, the insert has a minimal density along the perimeter. This translates directly to insert flexibility, so, you won't experience any uncomfortable riding or pinching.

The Castelli Presto Due Shorts are available in six sizes from Small to XXX-Large and in the colors Black/white, Red/white/black, and White/anthracite/black.

Tech Specs

[shorts] Affinity 210 Lycra, [grippers] 50/50 Light Compress
yes, Kiss3
Chamois Thickness:
Removable Chamois:
Recommended Use:
road cycling
Manufacturer Warranty:
30 days

Size chart


Men's Apparel
 Small Medium Large X-Large 2X-Large 3X-Large
Chest  35.5 - 37in
(90.2 - 94.0cm)
37 - 38.5in
(94.0 - 97.8cm)
39 - 41in
(99.1 - 104.1cm)
41 - 43in
(104.1 - 109.2cm)
43 - 45in
(109.2 - 114.3cm)
45 - 47in
(114.3 - 119.4cm)
Waist 29.5 - 31.5in
(74.9 - 80.0cm)
31 - 33in
(78.7 - 83.8cm)
33 - 35.5in
(83.8 - 90.2cm)
35.5 - 37.5in
(90.2 - 95.3cm)
38.5 - 40.5in
(97.8 - 102.9cm)
41 - 43in
(104.1 - 109.2cm)
Hips 36.5 - 38.5in
(92.7 - 97.8cm)
38 - 40in
(96.5 - 101.6cm)
40 - 42in
(101.6 - 106.7cm)
42 - 44in
(106.7 - 111.8cm)
44 - 46in
(111.8 - 116.8cm)
46 - 48in
(116.8 - 121.9cm)
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

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Here's what others have to say...


terrible clothing company

  • Familiarity:I've used it once or twice and have initial impressions
  • Fit:True to size

This is the second pair of Castelli brand cycle shorts and neither pair lasted more then a couple of months with very little actual use. The threads seems to come apart at the seems. I haven't had this trouble with any other brand but Castelli. I will never order their apparel again. I appreciate you all giving me a full refund. I will continue to shop at Backcountry but I will order other brands


They don't run small

  • Fit:True to size

Read a few reviews that said they run small. They didn't for me. Biking shorts are meant to be tight. Otherwise really like the look and material.


Seams Came undone

  • Familiarity:I've used it several times
  • Fit:Runs small

like a few others, I like the fit of these and sized up from what I would normally wear. I noticed quite quickly that the seams began to come apart. Back country was great about getting a replacement pair. We will see how the next pair does.


Perfect shorts!

  • Familiarity:I've used it once or twice and have initial impressions

The 3XL fits me perfectly. The grippers on he legs aren't too tight, very snug around the legs, and the waist area is pretty roomy. Doesn't press in on my tummy and remind me that I'm not the anorexic twig most European bike clothes were designed for. In any other industry size 3XL implies at least 250 lbs and limited to big and tall shops. I'm only 205 and a size 38 street pants which I can buy anywhere. The pad is great and they never got in the way of my 30 minute stint on rollers this morning. I'll probably never wear these outdoors on a sunny day since I prefer knickers over sunscreen but they are VERY comfortable and sized for a typical American body. Hopefully they will come back in red and I will buy some more.


Good Shorts, but Castelli Cut Corners

    I bought these shorts in the beginning of the spring season. They fit really well, look great, and are super comfortable. However, I was disappointed when one day I noticed the chamois was coming apart and the stitching on the shorts was unraveling. I usually ride about 200 miles a week between commuting and weekend rides, switching out shorts on a daily basis. I've never had this issue with any of my other shorts (my Pearl Izumi and LG shorts held up through the same season). Overall great shorts, but beware, if you put them through the wringer, they will come apart.


    Great short with one reservation

      Just got the Castelli Presto Due yesterday and took them for a 30 mile ride this AM. In my opinion, these look cool and fit nicely. I took the advice of other writers and upsized to XL. I am 6'2"- 36 in. waste and 200lbs. This was right size for me. The padding is as advertised and provided good comfort. My only minor disappointment is that I feel the inner seams are a little too pronounced (more so than my older Pearl Izumi) I could feel them a little bit before the ride and was concerned, but they did not cause discomfort enough so as to enter my consciousness during the ride. After the ride, I could actually see all the seam marks on my body. I will however continue to use these as otherwise happy. (oh yeah, except for the fact that this week they are on sale for $18 less than I paid last week! Guess I'm not a very savvy shopper.)

      I am 5'9 and 160lbs what size should I...

      I am 5'9 and 160lbs what size should I get?

      Best Answer

      Hey Andrew Pass,

      What is your waist size? If your waist measures 29.5-31.5 inches I would go with a small. If it is 31-33 inches I would go with a medium. If it is 33-35.5 I would go with a large. 35.5-37.5 I would go with XL. 38.5-40.5 2XL, 41-43 inches 3XL.


      Best short I ever purchased

      • Familiarity:I've put it through the wringer
      • Fit:Runs small

      I have never written a review and just order 3 more pairs. I rode in a down pour for 2 hours today and not so much as a red mark on my inner thighs. It seems small at first but after wearing 30 minutes it was like a glove. I just felt these shorts deserve mention as they truly are the best fitting short I own. I purchased probably 10 plus pairs a year and try on another 15-20 per year!


      Very comfortable

      • Familiarity:I've used it several times

      Wore these shorts several times now and found them very comfortable. They fit snugly which I like. The cushioning is just right for my tastes. I've worn them for rides from 40 to 80 miles with great results.


      Good for the trainer...

      • Gender:Male
      • Familiarity:I've put it through the wringer

      Bought these shorts to use on the trainer during the cold winter months. I wouldn't use these out on the mean summer streets because I found they held too tightly to my torso. Overall they're excellent for those quick 1 hour trainer days.


      Very happy with them

      • Familiarity:I've put it through the wringer

      I love them.... the pad is very soft. I have use them only for mountain bike. I´m 76kg / 5.6" I have the large and fits me very good. If you are a bit fatter even you are smaller you should order XL because they are a little tight around the abdomen.

      Very happy with them

      mens shorts

      • Familiarity:I've used it several times
      • Fit:True to size

      Have used twice and are very pleased with the shorts .


      Order one-size up

      • Familiarity:I returned this product before using it

      I originally ordered a medium, since I have a 31-inch waist, but when I tried these on they were extremely small. I've hear that Italian sizing is different than American sizing, and that Castelli tends to size small. I replaced the medium with a large it fit much better. If you order, be sure to order a size larger than normal. Otherwise, quality of the short was nice. Overall a good short (except for the sizing)

      Avg. ride time: 8h 35m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Possibly the best for the price

      • Gender:Male
      • Familiarity:I've used it once or twice and have initial impressions
      • Fit:True to size

      I ride a road bike and I like to take at least one long (70+ miles) a week, so I spend a lot of time in the saddle. After trying several different shorts, these seem to strike a balance between cost and performance. They aren't cheap, but for the price, they are the most comfortable I've worn. I've only done four rides so far, but three of those were over 65-miles, so I can say that they perform well on long rides. Normally 50-miles is the point where I start to feel mild discomfort, but these took me to 75-miles with very limited discomfort. I'm looking forward to centuries wearing these each of the next two weekends.

      Only issue was that the stitching of my first pair came loose after only two rides. They've been replaced and we'll see about the longevity. That's the only thing preventing a 5-star rating. At this price, there shouldn't be defects in stitching.