Judy Blue is a brand of women's jeans known for its focus on comfort, inclusivity, and a wide range of styles. They are particularly popular for their tummy control panel and stretch denim, offering a flattering and comfortable fit for various body types. 

For Judy Blue jeans, it's generally recommended to size down one size from your usual jean size, especially for those in sizes 0-15. The stretch in Judy Blue jeans can make them feel larger than other jeans, so sizing down will often result in a better fit. However, if you prefer a more relaxed fit, you can stay true to your regular size. For plus sizes (14W-24W), sizing down one size is also recommended.