A limb support fastening arrangement (300, Fig 1), for fastening a limb support to a limb of a wearer, comprises a first and second fastening portion； the first portion 301 comprising an inflatable chamber with an upper and lower chamber wall and at least one first fastener 305a disposed proximate the upper chamber wall 102, the lower chamber wall 101 being arranged in use, to extend proximate the limb of the wearer. The second portion 302 similarly comprises an inflatable chamber comprising an upper and lower chamber wall and at least one second fastener disposed proximate the upper chamber wall, the lower chamber wall being arranged in use, to extend proximate the limb of the wearer. The fastener associated with the first portion is arranged to detachably couple with the fastener associated with the second portion to detachably couple the first and second portions together, by positioning the lower chamber wall 101 of one portion over the upper chamber wall 102 of the other portion. The first and second fasteners may comprise magnets.
