DetailsLouis Garneau Men's Standard Fit Size Chart The Fit Sensor bib is the ideal choice for any cyclist who becomes more and more serious on his bike rides, without wanting to pay for the most high-end style...at least not yet! Made of a double construction with a polyester interior that helps wick away sweat and a heavy-duty nylon exterior, the Fit Sensor 3 bib is comfortable and will make you feel great even if it's your first experience with a "Lycra" shorts. The straps have been redesigned for 2021. They allow the cyclist to remain comfortable in the bike position, regardless of the "belly" you have! Made with the Louis Garneau patented Airzone chamois, 4-way stretch and with small perforated vents to keep you dry, The Fit Sensor is a great choice for your 2-3 hour hikes!