These might not be the most impressive in the tech specs (breathability only 5k), but they're probably the most comfortable pants I've ever worn. The fabric is super soft and the fit is dope. In medium, for me I can sag them and they feel baggy, or cinch the waists for touring. Speaking of touring, I have yet to find the breathability a major issue, but I haven't tried a big ascent in hot conditions yet either. The 10k waterproofing kept my dry in summer slush and rain. My one area of concern has been the hidden kick guards could be a bit bigger, as I've had some damage to the cuff above the guard, but that is always an issue with snowpants. All things considered I'm a big fan of the Manifest bibs for resort use, though I might bump to the touring version for significant uphill days or somewhere it rains a lot. - Twig