Just because it's lightweight doesn't mean it can't handle the workload. Cooler Wear Bib Overalls keep you warm and comfortable, even in the challenging conditions of working in coolers or on freezing outdoor jobsites.These insulated overalls are cut for comfort so you can get the job done without distraction. Bend, kneel and reach while you stay perfectly warm, thanks lightweight insulation that won't weigh you down. Pair these work overalls with an insulated hoodie and there's no task you can't handle.Sizing Instructions: For the most accurate fit, take your measurements over the base layer of clothing you intend to wear with this RefrigiWear gear (such as thermal underwear, jeans or a sweatshirt) and refer to the size chart for this product.