Cycling up a mountain road
guaranteed comfort

The 12-Hour Collection

Focus on the ride, not the miles.

Introducing the primalblends 12-Hour Bib and Short Collection—engineered for cyclists who demand ultimate comfort and performance on long rides. Whether you're tackling a century ride or enjoying an all-day adventure, the 12-Hour Bib and Short offer unparalleled comfort, superior breathability, and a sleek, race-ready fit.

GO THE DISTANCE

These shorts and bibs have been design to guarantee all-day comfort during ultra-endurance road and gravel events, when a variety of conditions and terrains will be encountered over extreme distances.

ONE-OF-A-KIND CHAMOIS

The 12-Hour chamois was co-developed with Elastic Interface® and our development team to create the world's best ultra-endurance pads.

Stratos 12-Hour Chamois 
Classic 12-Hour Chamois

WHAT THEY SAY

"primalblends says the Summit Stratos Bibs are designed for 'guaranteed comfort on extreme adventures'. That is a bold statement, but these shorts actually deliver on that promise. They are hands down the most comfortable bib shorts we've tried." - Road.cc

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