Assos EQUIPE RS JOHDAH Ultraz S11 Winter Jacket Men - black series

The pinnacle of winter jacket technology for high-intensity riding in the harshest conditions, engineered with new textiles that simultaneously increase protection, warmth, breathability, and elasticity – complete winter protection that adapts to high-intensity riding while maintaining a low-volume, second-skin fit.

The JOHDAH S11’s capabilities and versatility unlock winter layering for all conditions, either as a final layer for most winter conditions or a highly breathable mid-layer beneath the SCHLOSSHUND or ALLEYCAT for winter’s worst. Every textile is oriented for on-bike effectiveness, shielding exposed areas and your body’s leading edge while increasing breathability where protection is less necessary.

The biggest change for the S11 generation is the new DIAMOND Medium softshell, deployed across the jacket’s front and upper sleeves. More elastic, more protective, and more breathable than the previous generation’s SPHERE textile, DIAMOND improves aerodynamics while reducing overall restriction – a second-skin fit without pressure. The jacket’s sleeves are constructed with ZigZaggy foam for muscle-wrapping, stormproof protection, and OSMOS Heavy on the back panel maintains thermoregulating warmth while maximizing breathability in less exposed areas.

The built-in gilet returns, but with a different textile. The new LITHIUM Medium is an insulating layer with a grid construction that promotes extreme breathability. During hard efforts or long climbs, unzip the DIAMOND shell to ventilate, and the LITHIUM gilet maintains a warm layer across the chest, modulating temperature without complete exposure to the cold. Even when the jacket is completely zipped, the integrated Diffusor valves constantly work to actively regulate internal temperature, preventing overheating in variable conditions.

Features of the Assos EQUIPE RS JOHDAH Ultraz S11 winter jacket for men

Featured fabrics

DIAMOND Medium combines a softshell membrane with ultrasoft thermoregulating backing – a self-contained insulator and stormproof barrier, proprietary to Assos' Textile Laboratory Lugano. LITHIUM Medium is a highly breathable, midweight insulator with a grid texture that actively expels moisture and modulates internal temperature. ZigZaggy is a 3L softshell with an ultra-plush lining and extreme elasticity, providing a comfortable, enveloping fit – low volume; no pressure. OSMOS Heavy is Assos' most insulating thermal textile, deployed where warmth and breathability are critical.

Construction/fit

Assos' AEPD 11 racingFit is a second-skin, aerodynamic silhouette designed with WorldTour feedback to envelope the body in 360-degree compression and stability.

Engineering

• intraBooster: An integrated gilet that adds mid-layer insulation and continues to protect when the outer shell is unzipped.
• valveTec Diffusor: Dual valves on the shoulders shuttle airflow between the jacket’s layers, regulating temperature during punchy efforts and pulling moisture to maintain a dry microclimate.
• zeroSeam Pockets: A clean, seamless pocket construction that secures ride essentials and eliminates risk of road spray soaking through. A panel of STABILIZER V11 supports and stabilizes contents.

Material
Front, back, sleeve: 70% polyester, 20% polyamide, 10% elastane
Lining: 83% polyamide, 17% elastane
Sleeve 2, collar: 42% polyamide, 35% polyester, 23% elastane
Back 2, pocket: 56% polyamide, 28% polyester, 16% elastane
Pocket insert: 100% polyester
Pocket ramp: 72% polyamide, 28% elastane
Front insert: 80% polyamide, 20% elastane