BioX, the patented Circle One hard shell is made from 100% renewable materials. BioX features a multiaxial and multi-density flax-fibre weave.Flax is Europe’s strongest and most productive renewable fibre - suspended in resin its tensile strength is three times higher than that of aluminium. Complete with recycled lining and zippers, the luggage also boasts seed and nutshell-infused handles and a magnesium telescope.