OG Comfort For Kids Give your kids classic Nike comfort with the Flex Advance sneakers. Its FlyEase technology provides an extra-wide opening for easy on-off while the reinforced toe tips ensure extra durability for the little crawlers. Let your little ones flex their feet with the Nike Flex Advance! Nike Flex Advance Features: Super stretchy fabric Two-piece hook-and-loop strap Extra padding on the heels Reinforced toe tips for extra durability Two pull tabs for easy on-off Swoosh design FlyEase technology for extra-wide opening Tongue can be worn inside or outside the shoe for extra comfort Rubber and foam outsole