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Women's Signature Fly Bib Knicker

Size Guide

Supportive and light, these bib knickers are designed from the ground up to meet the highest standards of performance and to make the cool-weather mid-ride stop as short as possible.

This begins with our FLY design: pee break friendly functionality that doesn’t compromise on fit or performance, and pairs it with some of the finest materials available.

    • Lightweight bib knicker for those days that require a bit of extra coverage without the added bulk of winter fabric
    • Mesh panel on back of knee for breath-ability and comfort
    • Seamless microfiber bib upper straps for ultra soft feel and enhanced comfort
    • High gauge premium quality Italian Lycra for excellent fit and support
    • Proprietary Signature Chamois developed with Cytech
    • Signature Fly zipper design for bathroom breaks without removing top or helmet. Patent Pending
  • Fabric 78% Polyamide / 22% Elastane
    Made in: Italy

  • Caring for your cycling gear properly will extend its life and maintain its performance, fit and quality. It’s important to consider these instructions carefully. While we stand behind the quality of our apparel, not adhering to these instructions will void our warranty against manufacturing & defects.

    We strongly recommend washing your new gear before wearing it. You’ll find that your apparel will soften, and fit & comfort will improve after washing - especially with bibs & shorts.

    Machine wash cool, 86°F (30°C) with like colors: Cooler temps maintain better longevity for your apparel. Like colors, especially lights, will remain more vibrant when washed with like colors.

    Use mild detergent. Do not bleach or dry clean: Strong detergents & bleach can break down the fibers and elastane in the garment, dramatically reducing its life.

    Close all fastenings: this goes also for other garments mixed in with your cycling apparel. Velcro closures or clasps can catch on stitching or trim and damage your garments.

    Lay flat to dry. Do not tumble dry: Do not put your cycling apparel in the dryer. Even on low heat. Don’t do it. Heat can damage fabric, elastic and heat transfer logos very easily. Lycra (Elastane) is used throughout our garments to provide compression and support and is susceptible to damage from heat and can irreparably damage your apparel.

Year Round

With our complete range of FLY products, from summer weight bib shorts to mid-winter bib tights, we've got you covered no matter the weather. You can also pair any bib short with our Knee and Leg warmer options to extend their range.

Compare Knickers & Tights

Women's Fit & Sizing

Velocio fit is designed for comfort and performance. Starting with a form-fit silhouette, we've developed our women's-specific patterns from the ground up to compliment a wide range of body types and riding styles. All of our apparel is tailored for on-bike fit to ensure optimal muscle support and range of motion while riding. You may find certain aspects of our garments to seem "off" while standing, yet once you start pedaling these points disappear. 

Velocio bibs and shorts are made from highly compressive performance fabric for excellent support through an athletic fit. They will feel small when you first put them on and will often require washing and a few rides for them to "break in." We strongly believe in the benefits of compression - both in its performance benefits, as well as in its long-distance comfort - and we've designed all of our bibs with this in mind.

Should you want a more relaxed fit, we recommend ordering a size up. Find your fit through our sizing tables below.


Women's sizing guide

Taking your measurements

Chest - Start by placing a measuring tape around the largest part of your chest. The tape should be flat but not too snug.

Waist - Your natural waist lies between your bottom ribs and hip bones, close to the navel. To measure, breathe deeply, relax your stomach and lie the tape measure flat around your waist, allowing for a ¼ inch of slack.

Hip - Measured around the widest point of your hips.

Model measurements - Shown wearing size S jersey / M bib short.

Height: 5'5" (165cm)
Weight: 148lbs (67kg)
Chest: 36" (91cm)
Waist: 28.5" (73cm)
Hips: 39.5" (100cm)

  • Size Chest Waist Hip
    XXS 29 - 31 22-24 31.5 - 33.5
    XS 31 - 33 24-26 33.5 - 35.5
    S 33 - 35 26-28 35.5 - 37.5
    M 35 - 37 28-30 37.5 - 39.5
    L 37 - 39 30-32 39.5 - 41.5
    XL 39 - 41 32-34 41.5 - 43.5
    XXL 41 - 43 34-36 43.5 - 46
  • Size Chest Waist Hip
    XXS 74 - 79 56 - 61 80 - 85
    XS 79 - 84 61 - 66 85 - 90
    S 84 - 89 66 - 71 90 - 95
    M 89 - 94 71 - 76 95 - 100
    L 94 - 99 76 - 81 100 - 105
    XL 99 - 104 81 - 86 105 - 110
    XXL 104 - 109 86 - 101 110 - 117

Customer Reviews

Based on 13 reviews
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Suzanne N.
United States

Yes….Love it

Excellent! Really nice and helpful!

olivia c.
United States


This most comfortable , clean looking bib I have ever worn

Eileen H.
United States

SoCal Winter weather

Velocio delivers again! The weight and compressive feature of bib knicker is perfect for our weather! I like the length and of cours the “signature fly”!

Claudia T.

Spectacular Knickers!

These are amazing! I hate knee and leg warmers because regardless of how awesome your legs are, they still give you sausage casing legs. These knickers solved that issue! I live in Northern CA and it can get quite chilly. I wear the knickers with the powerwool baselayer, and the softshell jacket and I am good to go for hours in chilly weather. Super comfortable, and the knickers make you look fabulous. I will be wearing these all fall, winter, and spring! Love them!


Very excited !!

I super happy with the fit on these! I am 5’4” 127 lbs athletic build Small waist larger hips and bum and thighs of a cyclist (I’m not a bean pole) I purchased the small and I was worried they would be to tight around the l butt Quads and calf’s but this was not the case Nice smooth fit not to tight like my favorite Yoga pants only with the pad ;) I think these will be great for California winters early morning rides and not to hot Transitioning later into the day. I also bought the long sleeve jersey Which is super soft reminds me of Lingerie nice rust color different From all the other high Vis colors Out there!