Ever heard of a fiberous material that actually gets thicker as it’s stretched? Neither had we until we stumbled upon a science artical describing the benefits of a fabric called Zetix invented by Auxetics Technologies, LTD from the UK. Seems this fabric is made from an auxetic material that has a negative Poisson’s ratio which in laments terms means that when the fiber strands are stretched lengthwise, the transverse strain in the material increases also. This is due to uniquely oriented molecular bonds that have a hinged shape to them. So instead of getting thinner like a bungie cord or rubber band would when stretched, it gets thicker. Zetic is so strong in fact, that it absorbs and disperses energy from explosive impacts without breaking.