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Product Images

Castelli Womens Prima Bibshort Black/Dark Gray
Castelli Womens Prima Bibshort Black/Dark Gray
Castelli Womens Prima Bibshort
Castelli Womens Prima Bibshort
Castelli Womens Prima Bibshort
Castelli Womens Prima Bibshort
Black/Dark Gray
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Castelli Womens Prima Bibshort 2
Castelli Womens Prima Bibshort 5
Castelli Womens Prima Bibshort 8
Castelli Womens Prima Bibshort 9
Castelli Womens Prima Bibshort 10
Castelli Womens Prima Bibshort 11

Castelli Women's Prima Bibshort

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MSRP: $109.99
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Prima Bibshort — a better short.

Shorts are an obsession at Castelli and the Women's Prima Bibshort shows this attention to detail. They're the most vital piece of clothing and one of the hardest to get right. Even though the Prima is Castelli's entry-level short, it shows that there is no compromise on comfort and performance.

It starts with the women's-specific KISS Air2 seat pad. Just the name gives an idea of the process of constant improvement, which started with a soft KISS pad that was improved by making it more breathable (Air) and then improved again in the latest update to use the softest-ever top fabric (2). It's ready for your next big ride indoors or out.

Castelli has updated the fabric to the new Pro Dry Soft, which has a smooth matte finish that feels cool on the skin while being very supportive and quick to dry. Details like the reflective patches are stitched in instead of being glued on and the GIRO3 elastic has the grip woven right into the fabric, proving this short is designed to go the distance.

This attention to detail — go ahead and call it an obsession — is why Castelli's entry-level short is just a better short.


  • KISS Air2 seat pad for all-day comfort
  • Pro Dry Soft matte Lycra® is sleek looking and ultra-breathable
  • Anatomic construction for perfect fit
  • Rear reflective panels
  • GIRO3 engineered flat leg band
  • Mesh bib straps for comfort and breathability
  • Designed to keep you comfortable and cool in weather from 59°-95°F
  • Performance fit: Castelli apparel is designed with a performance cut that often runs smaller than that of other manufacturers. Consider sizing-up one size to ensure a comfortable fit — e.g., if you typically wear a Medium, select a Large in Castelli.

    Feel free to contact us with any questions or concerns.

  • 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: Shorts 


    Style Type: Bibs 


    Chamois: Kiss Air2 


    Fabric: Pro Dry Soft matte Lycra 


    Season: Spring Summer Fall 

    Black/Dark Gray - X-Small

    Mfg PartNum: L20062010-1 

    Black/Dark Gray - Small

    Mfg PartNum: L20062010-2 

    Black/Dark Gray - Medium

    Mfg PartNum: L20062010-3 

    Black/Dark Gray - Large

    Mfg PartNum: L20062010-4 

    Black/Dark Gray - X-Large

    Mfg PartNum: L20062010-5 


    Ordered by Most Relevant First
    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Definitely recommend sizing up if you have that option - I'm often a size L and one of the primary seams busted while trying on, so I had to return them.
    by Anonymous
    Cycling Enthusiast
    Eugene, OR

    Stronger seams - they fit great, but upon taking them off, just the pulling off of my hips, the seam popped. I was surprised given these are going to be coming on and off regularly, that the seams weren't more durable.

    Reviewed 4/11/2023
    Was this review useful to you? Yes/No
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    Very comfortable
    by Anonymous

    Fits great - the legs don't ride up and I didn't even feel the bib straps at all.

    Reviewed 7/22/2022
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    Thank you for your feedback.
    Love these bibs!
    by LeeAnn
    Cycling Enthusiast
    Scottsdale, AZ

    The fabric is slick so you can easily move around on the saddle. Buy one size up - they run small.

    Reviewed 3/28/2022
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    Pladding a bit too thin for long rides
    by Anonymous

    Overall they are comfortable but the padding at fromt is too thin for longer rides

    Reviewed 11/13/2020
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    Thank you for your feedback.
    my first Castelli bib shorts; I�m sticking to this brand now
    by Anonymous

    doesn't roll at the waistline; padding was perfect size for me

    Reviewed 11/6/2020
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