Is it ok for my employer to provide one pair per size safety shoes for admin staff and they have to share?

basically we got told today that we must wear steel toes whenever we step foot in the warehouse, we do our post in there so we go in for like a min and then out. work has provided one pair per size, and everyone has to share. i find that a bit unhygenic, what if someone has a foot fungal like a verucca? i assumed that work would provide us all with shoes...hmm. is this legal?