Salva Dut, from 'A Long Walk to Water', wore shoes made from rubber tires, a common and durable type of footwear in many parts of Africa.
The question appears to be about Salva Dut, a character from the book A Long Walk to Water by Linda Sue Park, which is often part of middle school reading curriculums.
In the story, which is based on true events, Salva is a young boy who becomes one of the "Lost Boys" of Sudan, forced to flee from civil war.
As for Salva's footwear, it is described that he wore shoes made from rubber tires. These were hand-crafted shoes commonly made in many parts of Africa as a practical and durable solution using the resources available.