Many cyclists are also interested in alpine sports: skiing, snowboarding, mountaineering, ice climbing it's all fair game. But when we're on our bikes, we don't want the extra bulk that the gear for these other disciplines often necessitates, nor are we likely to ride in conditions that require that much protection. As such, we recognize that cold weather cycling gear can be too warm, especially when we're doing intervals or climbing. Sportful understands this, too, and tailored the Grupetto Bib Tights to fit the needs of cyclists, not arctic explorers. The Grupettos are made entirely of ThermoDrytex Plus fabric, a blend of nylon and Lycra that provides insulation and breathability to regulate your body temperature and keep you dry, which in turn keeps you out riding. The Grupetto's ThermoDrytex Plus grants less wind protection than the ThermoDrytex Double used in the line topping BodyFit Pro Thermal Bib Tights, but it's also more flexible, more breathable, and lighter. These aren't bib tights for an arctic expedition, but they'll keep you cycling through all but the worst winter conditions. All of the seams are best defined with the modifier flat. In the name of comfort, Sportful opted for lay flat trim on the bibs and flatlock stitching throughout the entire article. Seam ridges are virtually eliminated, so you won't suffer any abrasions. Camlock ankle zippers keep the hems of the legs where you want them: down, covering your lower legs and not exposing any part of your shins to the winter air. The zippers also include reflective piping, which, along with the reflective logo at the top rear, helps keep you visible in low light conditions. The tights boast a Bodyfit Pro chamois, which Sportful developed with its stable of pro cyclists and that it bills as its most comfortable long distance insert. We can report that it is comfortable, thanks in no small part to its seamless construction, a feature that eliminates chafing and which riders who have spent a ...