Many refugees have to walk thousands of miles over the course of their journey, over treacherous terrain and in harsh weather. Those conditions will wear out a pair of shoes quickly, with little opportunity or resources to replace them.Refugee camps can supply migrants with fresh clothing and shoes, but it's often not in the best condition, or even properly fitting. But Brunel University London student Faisal Tayan has developed a product called Shoe4All, which features a 3D printed mechanism that allows the shoe to expand or contract to fit adult sizes 6 to 11. The shoe itself is designed with neoprene, an insulated material used to make wetsuits. Learn more at