Hot answers tagged spider-man-trilogy
From Wikipedia entry of Spider-man's power - The ability works through thin layers of cloth, such as the fabric of his costume, but not through materials such as the soles of shoes. When Peter Parker needs to crawl without changing into the costume, he removes his shoes first. Spider-Man's wall-crawling ability has increased with time, most ...
Specifically in the films, Parker grows a hooked chitin from his fingers. Assuming he cannot do the same with his feet, he needs only to apply compressive stresses (think arches) to transfer the weight to his hands. So his feet would supply minimal support where his upper body would compensate for every movement.
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