Tough enough for whatever job you're doing. The Women s Insulated Softshell Bib Overalls are designed specifically to provide the most comfortable fit for women. The bib-overall features a square back and rib-knit side gussets, creating the best fit for the shape of women's bodies as well as increased freedom of movement. Comfort rated down to -20°F, these bib overalls will keep you warm and protected no matter the conditions. Mother Nature can do her worst - you've got it covered. At RefrigiWear, Softshell works hard. 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.