Thermal insulation, stretch, and breathability are our basic requirements for cold-weather training tights, and the PEARL iZUMi AmFIB Tight checks off all three. Its ultra-soft AmFIB softshell fabric features a water-shedding treatment, ensuring that road spray and sleet don't ruin the gains made by the fleece's heat-trapping properties. Chamois-free construction lets these tights flex into running or lets you layer your preferred summer bibs underneath. Two thigh cargo pockets store our essentials with ease, while the BioViz reflective elements enhance visibility on evening winter rides.