Help your child stay comfortable during a long outdoor adventure with the Carhartt Boys' 4-7 Quilt Lined Canvas Bib Overalls, which have triple-stitched seams that are made to endure heavy use. The 100% polyester quilted taffeta lining helps keep cold wind and air at bay, while the Rugged Flex® technology helps the fabric move with your little one for a wide, comfortable range of motion.