Tychem® garments with attached socks need to be worn inside of protecting outer footwear and therefore are not acceptable as outer footwear. These hooked up socks do not need ample sturdiness or slip resistance being worn as being the outer foot covering. (DuPont, 2023) C. 2008. Use of air https://costabull.com/product/toluene-diisocyanate-tdi-80-20/