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Assos Womens UMA GT Ultraz Winter Bibtight Black
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Assos Women's UMA GT Ultraz Winter Bibtight

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Utilize the power of Assos' RX Heavy fabric to stay comfortable your entire ride — no matter how cold it is outside.

Durable cycling gear that blocks out the cold while still highly flexible is crucial in any bibtight, especially for winter rides. To answer this call to action, Assos developed their UMA GT Ultraz Winter Bibtight, which is ideal for those frigid cold-weather rides where exposed skin from knee warmers and knickers just won't cut it.

A primary construction of wrap-knit RX Heavy provides incredible insulation and almost eliminates excess moisture, all while allowing for the ultimate range of motion. This material is then brushed with Roubaix to now feature an ECO water-repellent treatment for further protection from light precipitation. To improve your ride the backs of the legs are made up of RX Light, which delivers the perfect touch of breathability in this high-flex zone. The bibs falls into Assos' female-specific regularFit category, which translates to a lightly compressive fit that's not as tight as the ultra-intense racingFit apparel. Fabric panels flex with each pedal stroke, while the proven-successful UMA EVO insert offers 8mm of plush memory foam for dependable comfort on every ride, no matter how low the temperature reads.

When full-leg coverage and high levels of insulation become mandatory, turn to the Assos Women's UMA GT Ultraz Winter Bibtight and stay warm all winter long. With fabric that ensures you stay shielded from biting winds and cold air thanks to multiple pre-shaped fabric panels that work hard to support the upper leg, knees, and calves while in motion.


  • Warp-knit RX Heavy fabric developed to wick moisture and add insulation while still highly flexible
  • Asymmetrical-stretch warp-knit RX Light fabric provides light insulation and boosts comfort in high-flex areas
  • UMA S7 EVO elastic interface insert with proven 8mm of memory foam in a new black colorway
  • Perforated 3D waffle foam provides lightweight breathability
  • Patented goldenGate technology interrupts stitching along both insert's side panels, allowing a more three-dimensional freedom of movement
  • Y7 Frame Carrier Bib Tech — wide, flexible bib straps converge at the upper back in a Y-shape design for a flat, stable structure that doesn't irritate the shoulders
  • Thin magnetic Schnalle clasp situated below your chest that's simple to fit and unclasp
  • Stabilizatior V3 is a dorsal stabilizer in solid mesh with limited vertical stretch, also includes UMA GT line graphics and climaCode
  • Reflective bands placed on the backs of the calves boost visibility
  • RegularFit is optimized for total comfort in the riding position, with a more relaxed cut than the second-skin racingFit

  • 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.

    Discount Codes are not applicable to Closeouts.

    This product is NOT Eligible for VIP Points.


    Leg Type: Full Length 

    Black - X-Small

    Mfg PartNum: 1214216 - XS 

    Black - Small

    Mfg PartNum: 1214216 - S 

    Black - Medium

    Mfg PartNum: 1214216 - M 

    Black - Large

    Mfg PartNum: 1214216 - L 

    Black - X-Large

    Mfg PartNum: 1214216 - XL 

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    Reviewed 2/26/2021
    by Natalie
    Cycling Enthusiast
    Providence, RI
    Value Rating
    Overall Rating
    1 of 1 customers found this review helpful.
    My very favorite winter tights

    Great fabric, warm enough with great freedom of movement. I usually find windblocking tights very restrictive - these are definitely not. Great chamois, I love bibs - these are just not easy for bio breaks. Not inexpensive, but totally worth it if you are committed to riding outside in the colder weather.

    Was this review useful to you? Yes/No
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