Is the Mille GT S11 good for long rides?

Yes — it is Assos’s core endurance model, part of its Mille | Endurance series, which Assos describes as its complete series for long-distance riding: streamlined regularFit, ultra-plush inserts and muscle-hugging, temperature-regulating fabrics. Assos rates it 4/5 for endurance and 2/5 for racing, with a 3/5 ride intensity: made for long, steady road days. For the very longest days, Assos positions the Mille GTO S11, with a twin-layer 11+10 mm insert and extra support under the sit bones.

Mille GT S11 or Mille GTO S11?

Both are Assos regularFit endurance bibs with rollBar straps and the zeroPressure waist. The GTO is the step up for the longest rides: a twin-layer GTO S11 insert (11+10 mm) with extra support under the sit bones and kraterCooler/whirlKrater perforations, cranKio Tec shaping at the hips and an INject leg gripper, and Assos rates it 5/5 for breathability (GT: 4/5). The GT S11 is lighter-padded at 12 mm and costs less.

Mille GT S11 or Equipe R S11?

It depends on how you ride. The Equipe R S11 is Assos’s racing bib: a second-skin racingFit, a thinner 9 mm Mono 9 insert, X-Frame straps and raw-cut legs, rated 4/5 for ride intensity. The Mille GT S11 is the endurance choice: regularFit, a 12 mm insert and a 3/5 intensity rating, for comfort over long, steady rides.

How do Assos bib shorts fit, and which size should I pick?

Measure around the narrowest part of your waist, then factor in your height, with the fullest part of your hips as a third reference, and check Assos’s chart in the size guide. Assos cuts its bibs to mirror your body on the bike: it’s normal to feel the straps and fabric pull while standing, and the shorts “click” into place once you’re in the riding position.

Is the Mille GT S11 for hot or mild weather?

Warm weather: Assos lists it for temperatures above +21 °C and rates it 1/5 for insulation, 4/5 for breathability and 5/5 for quick drying. For cooler days, pair it with leg warmers or choose a Spring Fall or winter bib.

ASSOS Mille GT Bib Shorts S11 EF

Black Series

€180,00

~~€180,00~~ €180,00

Tax Included
EU Destination Selected (Spain)

Out of stock

The essentials

Best for

Long road rides
Endurance
Warm weather

ASSOS Mille GT Bib Shorts S11 EF - Black Series

Technologies

Rated by ASSOS

Endurance
Racing
Ride intensity
Breathability
Quick drying
Insulation

Specifications

Insert	GT S11 · 12 mm
Series	Mille \| Endurance
Fit	regularFit
Fabric	QUARTZ
Temperature	> +21 °C
Sizes	XS–3XL (range varies by colour)

GT S11 · 12 mm

The Mille GT’s own chamois: a 12 mm endurance insert with Shock-Absorb Damping Mono 12 foam, perforated 3D Waffle foam, a free-floating goldenGate 2.0 construction and an ultrasoft Sundeck Tec front panel (Assos).

QUARTZ textile

A lightweight, breathable warp knit with permanent odour control. Assos says its true-black colour doesn’t turn white or see-through when stretched, and 80% is pre-consumer recycled polyamide.

regularFit

Assos’s streamlined regularFit with body-contoured shaping and fewer seams, to remove friction for all-day comfort and easy layering. In Assos’s fit guide, regularFit is a balanced technical fit with moderately compressive fabrics: supportive without the tight feel of the Racing models.

rollBar

A patented bib-strap bracing adapted from Assos’s Racing Series. It stabilises the insert and locks it in place as your weight shifts when sprinting, climbing and cornering.

PILtec Plug-In

A light, very breathable textile band at the leg opening. The microdot silicone is invisible from outside but holds the leg in place, wet or dry.

zeroPressure Waist

A soft, very elastic waist construction for comfort and hold at the waist without pressure or pinching.

Shock-Absorb Damping Mono 12

Compressive foam layers in a 12 mm endurance platform; thermoformed shaping reduces ridges and irritation (Assos).

3D Waffle

A patented, three-layer perforated foam that adds breathability and removes excess weight (Assos).

goldenGate 2.0

A free-floating construction that moves with your body rather than against it; new cut-outs on the wings reduce friction through the pedal stroke (Assos).

Sundeck Tec

An ultrasoft panel at the front of the insert that minimises its footprint and removes pressure, for a more streamlined fit and more airflow (Assos).

ASSOS Mille GT Bib Shorts S11 EF - Black Series

Compare with

	ASSOS Mille GT Bib Shorts S11 EF - Black SeriesAssos’s core endurance bib and, in its own words, often the first touchpoint into the brand: made for long, steady road rides in warm weather.	ASSOS Mille GTO Bib Shorts S11 ST - Black Series Choose it for the longest rides: twin-layer 11+10 mm GTO S11 insert and 5/5 breathability (Assos).	ASSOS Equipe R Bib Shorts S11 - Edge Green Choose it to race: second-skin racingFit and a 9 mm Equipe R S11 insert.
Regular price	€180,00	€350,00	€200,00
Safety rating	—	—	—
Insert	GT S11 · 12 mm	GTO S11 · 11+10 mm	Equipe R S11 · 9 mm
Series	Mille \| Endurance	Mille \| Endurance	Equipe \| Racing
Fit	regularFit	regularFit	racingFit
Fabric	QUARTZ	OSSIDIA + LOSANGA	Type.911
Temperature	> +21 °C	> +21 °C	> +21 °C
Endurance	4/5	5/5	3/5
Racing	2/5	3/5	4/5
Ride intensity	3/5	4/5	4/5
Breathability	4/5	5/5	5/5
Quick drying	5/5	5/5	5/5
Insulation	1/5	1/5	1/5
Sizes	XS–3XL (range varies by colour)	XS–3XL	XS–XXL (range varies by colour)
Leg length	—	Standard (Assos also makes a Long, +3 cm)	—

ASSOS Mille GT Bib Shorts S11 EF - Black Series

Size guide

Size	Waist (cm)	Waist (in)	Height (cm)	Height (in)	Hip (cm)	Hip (in)
XS	70–74	27.5–29.1	155–170	61.2–66.9	89–95	35–37.4
S	75–80	29.2–31.5	165–178	65–70	94–100	37.5–39.4
M	81–86	31.6–33.8	173–188	68.1–74	99–106	39–41.7
L	87–92	33.9–36.2	178–190	70–74.8	105–110	41.3–43.3
XL	93–99	36.3–39	181–195	71.3–76.7	109–116	42.9–45.6
2XL (XLG)	100–106	39.1–41.7	185+	72.8+	115–121	45.3–47.6
3XL (TIR)	107+	41.8+	185+	72.8+	120+	47.2+

Assos: measure the narrowest part of your waist, then factor in your height; use the fullest part of your hips as a third reference. Assos apparel is cut to mirror your body on the bike — it’s normal to feel bib straps and fabric pull while standing; in the riding position the garment clicks into place.

How to measure

Chest: around the fullest part, under the arms. Waist: around your natural waistline. Hips: around the fullest part. Keep the tape snug but not tight.

Size SMALL MEDIUM LARGE

Description

Assos’s core endurance bib and, in its own words, often the first touchpoint into the brand: made for long, steady road rides in warm weather. The S11 generation brings a lighter, true-black QUARTZ fabric, a 12 mm GT S11 insert and rollBar straps from the Racing Series. If you race, the Equipe R S11 is sharper; for the very longest days, the Mille GTO S11 adds a twin-layer 11+10 mm insert.

12 mm GT S11 insert: Mono 12 foam, perforated 3D Waffle, free-floating goldenGate 2.0
rollBar straps from Assos’s Racing Series lock the insert in place
QUARTZ fabric: light, odour control, 80% recycled polyamide
PILtec Plug-In leg gripper with invisible microdot silicone
For warm weather: > +21 °C, quick drying 5/5 (Assos)

Available sizes