Assos’s has updated its endurance collection with new bib shorts and jerseys which, in the Swiss brand’s words, “refine comfort, breathability, and fit while modernising aesthetics".
Assos calls the men's Mille and women's Uma GT range the “backbone” of its collection. It is the most accessibly priced – £115 for the short-sleeved jersey, £135 for the long-sleeved version while the shorts are also £135 – and aimed at regular, daily riders rather than racers and for that reason, says Assos’s senior manager of development Luca Zanasca, “every update has to meaningfully improve the ride experience. We focused on refining the essentials: increased breathability, and subtle construction improvements that deliver noticeable gains in comfort, stability, and fit – ride after ride.”

While the S11 generation is still the latest, the new-for-2026 jersey and shorts build on the legacy with fabric updates, trickled-down Racing Series (RS) technology, a cleaner, more contemporary silhouette, and an updated, larger Assos ‘A’ logo that’s also inherited from RS.
There’s also a spectrum of new contemporary colours not only for the jerseys, but also for the shorts. Last season Assos launched its first non-black shorts in 10 years with the Equipe R and Dyora R range. Now, alongside the standard black (‘blackSeries’), the Mille and Uma GT bib shorts are available in Burgundy Red, Moss Green and, in what might be a first for Assos, Wild Brown. For those who were concerned that Assos might be a little too conservative in its tastes compared to Rapha when it comes to creating a suitably flamboyant Giro changeout kit for EF Education-EasyPost, this is an encouraging sign.

The Mille/Uma GT Jersey S11 EVO is engineered to keep riders cool, dry, and comfortable for daily riding, according to Assos. The main body is made from the ultralight AirCell fabric like the previous version: a circular knit with an open hexagon structure that is designed to deliver exceptional airflow and elasticity. However, the sleeves are updated with a new textile called Eclipse. This is, says Assos, an “impossibly light warp-knit material with an ultrasoft feel and UPF 50+ protection. Borrowed from the Racing Series, the raw-cut sleeve construction creates a low-profile finish that improves aerodynamics while eliminating pressure points.” The jersey is cut to Assos’s regularFit sizing, which is body contoured with reduced seams for comfort on long rides without the second-skin closeness of racingFit.
At the rear are Assos’s Triple Ramp Pockets, which use flexible panels that create lids to help stabilise cargo when fully loaded.

The men’s Mille version comes in Black, White, Edge Green, Blossom Pink, Golden Yellow, Ground Brown and Deep Petrol in the Mille Range while the women’s Uma jersey is available in White, Almond Milk, Edge Green, Blossom Pink, Wisteria Violet and Golden Yellow.
MILLE/UMA GT Bib Shorts S11
The Mille/Uma GT Bib Shorts S11 feature a lighter, more durable construction and – riders with long levers will be pleased to hear – a longer leg length. A new Quartz textile delivers breathable compression, according to Assos, and is designed to be a perfect choice for long days in the saddle. Eighty per cent of the fabric content is made from pre-consumer recycled polyamide.

Stability and support come via Assos’s rollBar bib strap technology, again adapted from the Racing Series, whereby the straps are attached low at the rear of the shorts in order to lock the insert in place as the rider moves through sprints, climbs, and corners. At the leg openings, the PILtec Plug-In grippers provides a secure hold in wet or dry conditions with an invisible, low-profile finish.
At the core of the shorts is Assos’s GT S11 Insert, a plush 12mm endurance platform with Shock-Absorb Damping Mono foam and a three-layered perforated construction for increased breathability, plus the goldenGate 2.0 technology that allows the insert to move freely with the body, reducing friction throughout the pedal stroke.
Assos says the GT S11 shorts are lighter, more durable with colours that remain opaque under stretch.

The Mille/Uma GT S11 kit on paper looks as though it offers one of the best performance-to-price ratios out there. Just as soon as the sun comes out (here in the soggy UK that admittedly doesn’t look imminent) we’ll get out on the road and find out.
For all the details visit Assos’s website.
