Petit Bateau - These tough, comfortable boys' jeans in dark denim feature a slightly fitted straight cut for a very trendy look. These boys' jeans have a zip fly with a Petit Bateau snap button in the front. They also feature a Petit Bateau Jean label on the back and chain stitching inside the waistband. Moms will love the adjustab... e, elasticized waistband, which makes it possible to fit the garment to the child's shape. Boys' Petit Bateau five-pocket jeans, a boys' wardrobe essential. Material: 98% cotton, 2% elastane; 100% cotton.