My anticipation for the Assos MILLE GTO Bib Shorts C2 was immense, given their reputation as the pinnacle of long-distance comfort. Tested on epic all-day rides, they lived up to claims of being engineered for ultra-long distances. The MILLE GTO C2 insert is the core. Its GoldenGate (no side stitching) and TwinPad (two foam layers) create a "floating" sensation, drastically reducing friction and pressure points. KukuPenthouse offers anatomical support, while 3D Waffle perforated foams ensure breathability and minimal bulk. This isn't just cushioning; it's a dynamic system preventing discomfort over hours, allowing sustained focus. Ossidia fabric feels incredibly soft, yet provides subtle muscle compression, making the shorts disappear. Its breathability, moisture-wicking, and UPF 50+ UV protection contribute to overall comfort and durability. This synergistic blend actively manages microclimate and supports physiology, removing distractions. A-Lock Engineering ensures unparalleled stability. The integrated rollBar bib straps, Butterfly Pattern leg wrapping, and ergoBox framing the insert keep the chamois perfectly in place, eliminating shifting or bunching. This "second-skin fit" is secure but not restrictive. The ZeroPressure Waist eliminates constriction for unrestricted breathing, complemented by stable, comfortable X-Frame Bib Straps. This holistic design provides comprehensive comfort beyond the chamois, enabling uninterrupted focus. The cumulative effect is unparalleled freedom and support. These shorts redefine comfort and are a game-changer for long rides, enabling longer, more comfortable distances. Despite the high price, it's a worthwhile investment. The meticulous engineering translates into a tangible performance advantage and enhanced enjoyment by mitigating common discomforts. It’s a strategic investment in my passion. The Assos MILLE GTO Bib Shorts C2 are the ultimate choice for serious endurance cyclists. For ultra-long distances or multi-day tours, and for those demanding absolute best performance, they are unequivocally worth the investment. They are a specialized tool, invaluable for the most demanding rides.
Product Details
Assos Mille GTO C2 Bib Short
With a design that lends itself to long endurance rides, the Assos Mille GTO C2 Bib Short (standard length) features a host of technologies aiming to enhance comfort whilst behind the bars. Constructed using Assos’ unique OSSIDIA warp-knit material, this bib short eliminates friction and provides compression to improve muscle support. The front panel utilises LOSANGA fabric technology to eliminate unwanted pressure, while raw-cut seams see a smooth transition from the garment to the skin to reduce irritation.
At the heart of this bib short is the all-new Mille GTO C2 Insert, which delivers supreme, lasting comfort for long days in the saddle. Plush and luxurious, this high-tech chamois is class-leading, and features KraterCooler airflow technology for a cool, fresh feel. With a three-layer construction to damp vibration and reduce pressure on sensitive areas, its all-new design is packed with features to enhance your ride.
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Features
- Warp-knit OSSIDIA primary fabric for frictionless comfort and muscle support
- LOSANGA front panel to reduce pressure against sensitive areas
- GTO straps and leg panels feature RollBar technology and a one-piece butterfly panel to boost stability
- Mille GTO C2 Insert supports the male anatomy and promotes ventilation
- KraterCooler insert technology ensures your sensitive areas are kept cooler
- GoldenGate interrupted stitching promotes a wide range of movement
- ZeroWaist raw-cut hems
- SuperFlat Xbib limits vertical stretch in the rear for consistent support
- SkinGrip leg hems feature a minimal silicone treatment for a secure fit
Specifications
- Composition
- 100% Polyester
- Gender
- Men's
- Leg Gripper Type
- Raw Cut
- Waist Style
- Bib
- Product code
- 1403015 / 54295660626266
Size Guide
| Size | XS | S | M | L | XL | XXL (XLG) | XXXL (TIR) |
|---|---|---|---|---|---|---|---|
| Height (1) | 155 - 170 | 165 - 178 | 173 - 188 | 178 - 190 | 181 - 195 | > 185 | (XLG But Wider) |
| Weight (2) | < 60 | < 70 | < 75 | < 80 | < 85 | < 90 | > 90 |
| Waist (3) | 70 - 74 | 75 - 80 | 81 - 86 | 87 - 92 | 93 - 99 | 100 - 106 | > 107 |
| Hip (4) | 89 - 95 | 94 - 100 | 99 - 106 | 105 - 110 | 109 - 116 | 115 - 121 | > 120 |

Assos apparel is cut anatomically without restricting movement in the riding position. It’s normal to feel bib straps and fabric pull while standing.
(3) Waist - Measure around the narrowest part of your waist
(4) Hip - Measure around the fullest part of your hips
Reviews
Having always used Assos shorts, I was keen to try out this version. The pad is noticeably thicker but you still stay planted on the saddle without any movement. The shorts are an improvement over any of the other models and have kept me comfortable on some long rides, so no complaints there. The fit was perfect (medium) and the standard leg length was the same as other Assos shorts. The only downside is the price, they are super expensive and I'm not sure if they're worth the extra over the other Assos shorts in the range.
Care
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
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About Assos
Swiss precision. Half a century of obsession.
Assos of Switzerland was founded in 1976 by Toni Maier-Moussa with a single ambition: reinvent cycling apparel from the inside out. The Lycra cycling short, modern bibs, the chamois as we know it — all began here. Half a century later, the obsession with precision and ride feel hasn't moved an inch.
Assos still designs and engineers every piece in Switzerland. The brand operates its own laboratory, its own development pool of test riders, and its own assembly line for the most demanding garments in the range.





