Air delivery conduit

An air delivery conduit configured to convey a flow of air under pressure from a respiratory pressure therapy device to a patient interface for providing respiratory pressure therapy to a patient, the air delivery conduit comprising:

• a flexible reinforcing structure comprising a plurality of support structures spaced apart along a length of the air delivery conduit;
• and
• an air impermeable covering provided to the support structures along the length of the air delivery conduit, the covering forming a sealed air path through which the flow of air is able to be conveyed in use,
• wherein the air impermeable covering comprises a textile layer that is in direct contact with each support structure,
• wherein each support structure comprises an outer surface, an inner surface opposite the outer surface and a pair of intermediate faces connecting the outer surface and the inner surface, each support structure comprising a cross section having outer corners that connect the outer surface to the intermediate faces and engage the textile layer, and
• wherein the outer corners are rounded to prevent tearing the textile layer.