Interior adjustable waistband expands for a perfect fit. Snap-button closure in sizes 5-8 regular button closure in sizes 10-20. Zip fly. Functional scoop pockets in front patch pockets in back. Soft, cotton denim, with super stretch. Built-In Warm has super soft, brushed interior for max coziness! Made with 24% recycled polyester and 5% recycled cotton. Less waste in the world ??