Respuesta :
The two details which refines the author's claim that the materials used for the design of shoes has evolved over time are where he mentions that there has been a change from the material used to make the shoes to more durable and resistant material.
According to the given question, we are asked to state the two details which refines the author's claim that the materials used for the design of shoes has evolved over time
As a result of this, we can see that from the given excerpt, there is the mention that human feet has evolved and has become bigger than they once were and this has led to the new materials which would make the shoes more durable and able to last longer.
Read more about “Shoes: Feet First!” here:
https://brainly.com/question/25730851
Answer:
South Americans wove sandals from the leaves the sisal plant, and the Anasazi people of Mexico and Arizona used the yucca plant.
And
Most soles are made from synthetic materials such as ethylene, vinyl, acetate, rubber, and polyurethane, which provide better traction, durability, and water resistance than leather soles.
Explanation:
These answers best explained how shoes were made, and differed from different places all around the world. By using the surrounding words and context, the South Americans, and Anasazi people using different materials (due to weather conditions and etc) shows change! And in the second answer materials such as "ethylene, vinyl, acetate, rubber, and polyurethane" show that humans are evolving and making use of new material, with support by "better traction, durability, water resistance"! :)
I hope this helped?