This is the second pair that I have purchased for my husband. They are great as far as warmth and keeping him dry. However, the first pair we bought the size he wears and they were too small. We purchase the second pair one size larger in length and 2 sizes larger in waist size. This is not due to having more layers on either. He wears long johns underneith, so if u are planning to wear more then that you might want to order even larger.