A lumbar-supporting back-bracing apparatus, the apparatus comprising: a support portion comprising: a plurality of posterior ribs configured to abut and extend along a low back of a user, each of the plurality of posterior ribs comprising: a first upper slot disposed at a first upper side of the rib and a second upper slot disposed at a second upper side of the rib opposite the first upper side, and a first lower slot disposed at a first lower side of the rib and a second lower slot disposed at a second lower side of the rib opposite the first lower side, and a belt portion comprising: an inner strap coupled to the support portion and configured to wrap around a torso and a low back of the user and thereby secure the apparatus around the torso of the user, an upper outer strap configured to pass through the first and second upper slots of the at least one rib of the plurality of posterior ribs and wrap around the inner strap, the torso and the low back of the user, and a lower outer strap configured to pass through the first and second lower slots of the at least one rib of the plurality of posterior ribs and wrap around the inner strap, the torso and the low back of the user, characterised in that the support portion further comprising a bracing web component comprising a plurality of rigid x-shaped crossing structures, wherein each rib of the plurality of posterior ribs is physically coupled to an adjacent rib of the plurality of posterior ribs by a respective one of the x-shaped crossing structures, thereby dampening vibrations in the apparatus. a support portion comprising: a plurality of posterior ribs configured to abut and extend along a low back of a user, each of the plurality of posterior ribs comprising: a first upper slot disposed at a first upper side of the rib and a second upper slot disposed at a second upper side of the rib opposite the first upper side, and a first lower slot disposed at a first lower side of the rib and a second lower slot disposed at a second lower side of the rib opposite the first lower side, and a first upper slot disposed at a first upper side of the rib and a second upper slot disposed at a second upper side of the rib opposite the first upper side, and a first lower slot disposed at a first lower side of the rib and a second lower slot disposed at a second lower side of the rib opposite the first lower side, and a belt portion comprising: an inner strap coupled to the support portion and configured to wrap around a torso and a low back of the user and thereby secure the apparatus around the torso of the user, an upper outer strap configured to pass through the first and second upper slots of the at least one rib of the plurality of posterior ribs and wrap around the inner strap, the torso and the low back of the user, and a lower outer strap configured to pass through the first and second lower slots of the at least one rib of the plurality of posterior ribs and wrap around the inner strap, the torso and the low back of the user, characterised in that the support portion further comprising a bracing web component comprising a plurality of rigid x-shaped crossing structures, wherein each rib of the plurality of posterior ribs is physically coupled to an adjacent rib of the plurality of posterior ribs by a respective one of the x-shaped crossing structures, thereby dampening vibrations in the apparatus. an inner strap coupled to the support portion and configured to wrap around a torso and a low back of the user and thereby secure the apparatus around the torso of the user, an upper outer strap configured to pass through the first and second upper slots of the at least one rib of the plurality of posterior ribs and wrap around the inner strap, the torso and the low back of the user, and a lower outer strap configured to pass through the first and second lower slots of the at least one rib of the plurality of posterior ribs and wrap around the inner strap, the torso and the low back of the user, characterised in that the support portion further comprising a bracing web component comprising a plurality of rigid x-shaped crossing structures, wherein each rib of the plurality of posterior ribs is physically coupled to an adjacent rib of the plurality of posterior ribs by a respective one of the x-shaped crossing structures, thereby dampening vibrations in the apparatus.