On cool days of training, we like to be free to choose our preferred mode of suffering: running or riding. Since they're chamois-free Louis Garneau's Optimum Mat Tights facilitate both, letting us either leg it out without feeling like we're in a diaper or layer our preferred summer shorts--and preferred chamois--underneath them. Either way, the breathable material provides coverage to knees and lower legs without stifling them in shoulder-season temperatures.