Sealing element for prosthetic heart valve

An implantable prosthetic valve that is radially collapsible to a collapsed configuration and radially expandable to an expanded configuration, the prosthetic valve comprising:

• an annular frame having an inflow end, an outflow end, and a longitudinal axis;
• a leaflet structure positioned within the frame and secured thereto;
• and
• a sealing element secured to the frame, the sealing element comprising:
• a first woven portion extending circumferentially around the frame, the first woven portion comprising a plurality of interwoven filaments;
• a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion in a downstream direction along the longitudinal axis of the frame;
• wherein at least a portion of the filaments exit a weave of the first woven portion and form loops extending radially outwardly from the frame, and extending in the downstream direction along the longitudinal axis of the frame to the second woven portion.