Это с чего вдруг он прочнее кевлара?
«Although the tensile strength is similar to Kevlar, Vectran still tends to experience tensile fractures when exposed to significant stress. The wispy, hair-like fibers tend to fray, to easily acquire dirt, and to readily entangle in hook-and-loop fasteners, from which they must sometimes then be cut or (when possible) torn.[2] If used without protective coatings, Vectran has low resistance to UV degradation, and should not be used long-term in outdoor environments.» Википедия
«Although the tensile strength is similar to Kevlar, Vectran still tends to experience tensile fractures when exposed to significant stress. The wispy, hair-like fibers tend to fray, to easily acquire dirt, and to readily entangle in hook-and-loop fasteners, from which they must sometimes then be cut or (when possible) torn.[2] If used without protective coatings, Vectran has low resistance to UV degradation, and should not be used long-term in outdoor environments.» Википедия