Bib shorts exist on a spectrum from race-day minimal to all-day supportive, and the Mille GTO Bib Shorts C2 Long sit firmly in the latter category. Assos designed these around their GTO concept—Gran Turismo Optimum—which prioritizes comfort over extended hours rather than weight savings measured in grams. The "Long" designation refers to the leg length, extending coverage to just above the knee for riders who prefer more fabric contact or want additional thigh support during longer efforts.
The chamois here is the GTO C2 insert, which Assos developed specifically for this comfort-oriented line. It's a thicker, more supportive pad than what you'd find in their race-focused Equipe series, built for riders who measure saddle time in hours rather than watts. The padding distributes pressure across a wider area and uses dual-density foam that responds to sustained loading without bottoming out. If you've found thinner race chamois uncomfortable after the three-hour mark, this is the direction to explore.
Construction uses Assos's Type.439 fabric, a compressive knit that balances support with breathability. The compression isn't aggressive—it's tuned for comfort rather than muscle containment—which means these work for a broader range of body types without feeling like you're fighting your way into them. The bib straps use their stabilizer system, keeping the chamois positioned correctly without the constant micro-adjustments that plague lesser designs.... Read More
The leg grippers deserve attention because Assos takes a different approach than most brands. Rather than silicone bands that can bind or irritate, they use a wider, more gradual transition zone that holds position through fabric tension rather than grip alone. Combined with the longer leg length, this creates a secure fit without the sausage-casing effect at mid-thigh. The rawcut edges eliminate the typical seam line at the leg opening, which matters more than you'd expect when you're four hours into a ride.
For sizing context, Assos runs its own system that doesn't map directly to standard S/M/L designations—check their fit guide rather than assuming your usual size. The XLG designation indicates their extended size range, offering the same construction and features across all sizes rather than compromises at either end of the spectrum. These pair naturally with the rest of the Mille GTO system if you're building out a comfort-focused kit, though they'll work equally well with any jersey you already own.
