Assos Mille GTO Bib Shorts S11 Regular 2026

The MILLE GTO Bib Shorts S11 embody the pinnacle of endurance comfort according to Assos. Designed for long, demanding rides in hot weather, these bib shorts represent the culmination of the Swiss brand’s expertise in ergonomics, muscle support and thermal management.

This new S11 generation goes even further: lighter, more breathable and more comfortable, it reimagines every area of contact with the cyclist. The bib straps feature a new, more ventilated construction, whilst the leg openings have moved away from traditional silicone in favour of a grip system injected directly into the fabric, drastically reducing friction and pressure points.

The main OSSIDIA fabric wraps the muscles in ultra-soft, uniform compression, reducing fatigue over long distances. At the front, the ultra-stretchy and breathable LOSANGA panel improves airflow, complemented by the iconic kukuPenthouse construction, which guarantees support and freedom of movement.

The heart of the bib shorts remains their key feature: the GTO S11 Insert, considered one of the most comfortable endurance pads in the world. Its 21 mm Twin Layer construction, combined with goldenGate 2.0, kraterCooler and whirlKrater technologies, ensures exceptional cushioning, constant ventilation and perfect stability, even after several hours in the saddle.

Designed for demanding cyclists, the MILLE GTO S11 is a no-compromise pair of bib shorts, tailored for ultra-distance rides, long summer rides and challenges where comfort becomes a performance factor.

Technical specifications:

- Model: MILLE GTO Bib Shorts S11
- Colour: Black Series
- Sizes: XS to XXXL
- Fit: Regular
- Recommended temperature: > +21 °C
- Riding intensity: 4/5
- Breathability: 5/5
- Quick-drying: 5/5
- Insulation: 1/5
- Aerodynamics: 4/5
- Compressibility: 5/5
- Composition:
- Legs: 80% Polyamide / 20% Elastane
- Front panel: 78% Polyamide / 22% Elastane
- Yoke: 85% Polyester / 15% Elastane
- cranKio Tec: eliminates creases at the hips
- zeroPressure Waist: optimal support without compression or pinching
- Shock-Absorb Damping System Twin: 21 mm (11 + 10 mm)
- goldenGate 2.0: total freedom of movement
- kraterCooler: targeted airflow
- whirlKrater: multi-directional airflow for a cool, dry microclimate

Assos Size Guide