Everybody seems facinated that silk is so strong!

it was used for parachutes.. (for the same reasons, high tensile strength..) It didn't work well in hose, because it doesn't stand up to abrasion well .... so your heal rubbing against the hose and your shoe, could wear a hole.. and while it does wick away moisture, if keep moist, it rots very fast, so inside of shoes, where you feet tend to sweat, would be hard on silk.

i went a googling.. but didn't find what i wanted, i did find this

Silk, the finest of all natural fibers, has three crucial qualities: strength, elasticity and extremely long fibers. A silk thread made of seven filaments has the tensile strength of 65,000 pounds per square inch..
that's pretty impressive!
from:http://www.hebrewhistory.org/factpapers/silk15.html


my other obsession