A flexion coupling (50) for a respiratory interface (8) device is provided. The respiratory interface device includes a mask (10) and a support assembly (30) having at least one strap (40). The flexion coupling includes an elongated flexure body (52) with at least one mask coupling (54) and at least one strap coupling (56). The coupling may include a flexible softer first material (60) and an inflexible harder second material (62) in form of a plurality of elements (80) disposed within the flexure body first material web pockets (71) in an interference pattern.
