Assos Women's UMA GTV Bib Shorts C2 review

Quality, comfort and convenience for demanding endurance riding

Front view
(Image credit: Emma Silversides)
Cycling Weekly Verdict

The Assos UMA GTV Bib Shorts C2 are the ultimate short for performance orientated endurance riders. Innovative design, functional fabrics and flawless construction all deliver comfort, quality and convenience. Obviously, all of this comes with a high price tag.

Reasons to buy
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    Moderate compression

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    Endurance chamois

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    Easy-pee system

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Reasons to avoid
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    Clasps may irritate if you happen to stop in a cafe

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Assos’s LaalalaiShorts_s7 have undergone a re-vamp, the result: the UMA GTV C2 women's bib shorts. A revised fabric sheds grams but gains permanent odour-control and active cooling. It’s a deeper, richer black and still offers UPF protection. The biggest change is the easy-pee system; the central, front magnet has been replaced with two clasps at the rear (exactly what we said needed to happen at last review of the Laalalai) to enable hassle free comfort breaks without compromising on-the-bike comfort and performance.

Construction and sizing

Assos’ size chart is like its clothing - unique and considered. Enter your height, weight and age, it then suggests your hip and waist measurements (for shorts). You can edit these before Assos predicts your size. I’ve been testing a medium, as suggested by their guide, and it fits perfectly. 

There’s moderate compression around the legs with no pinching to note, even at the leg ends. The straps offer enough tension to hold the shorts firmly in place without pulling on the shoulders. They fall to the side nicely, so there's no irritation over the breasts.

Assos claim that Ossidia, the main fabric, saves grams over previous materials. Just how much, they don’t specify, maybe we’ll have to take their word for it. If weight is of real interest, the medium UMA GTV C2 I tested is 35g heavier than Velocio's Ultralight Bib Shorts, which we tested alongside these as part of a grouptest. 

Odour control and active cooling are integrated into the fabric, rather than via any kind of treatment. The overall finish is a deep, dark black, and UPF 50 protection (Ultraviolet Protection Factor indicates what fraction of the sun's UV rays can penetrate fabric. UPF, unlike SPF, measures both UVA and UVB penetration).

‘Tech Sheen’, a fine mesh panel stretching across the abdomen, is intended to remove all pressure and provide increased breathability. The overall cut here is quite low.