A device configured to be inserted within a patient's vasculature, comprising: A microcatheter; and a resilient permeable shell having a proximal end, a distal end, a longitudinal axis and further comprising a plurality of elongate resilient filaments with a woven structure secured relative to each other at proximal ends and distal ends thereof, wherein the resilient permeable shell is an elastically self-expanding resilient permeable shell for treatment of an aneurysm and is in a radially constrained elongated state configured for delivery that is elastically collapsed and restrained within the microcatheter with the thin woven filaments extending longitudinally from the proximal end to the distal end adjacent each other along a length of the filaments; and the permeable shell having a globular configuration with the woven filaments forming the resilient permeable shell in a smooth path radially expanded from the longitudinal axis between the proximal end and distal end including a plurality of openings in the shell formed between the woven filaments; and wherein in the expanded state of the elastically self-expanding resilient permeable shell the distal end has a reverse bend in an everted recessed configuration such that secured ends of the filaments are withdrawn axially within the nominal contour of the permeable shell structure, characterized in that the plurality of elongate resilient filaments include large filaments and small filaments of at least two different transverse dimensions, and in the expanded state of the elastically self-expanding resilient permeable shell the proximal end has a reverse bend in an everted recessed configuration such that secured ends of the filaments are withdrawn axially within the nominal contour of the permeable shell structure, the two everted ends establishing a globular and longitudinally shortened configuration. A microcatheter; and a resilient permeable shell having a proximal end, a distal end, a longitudinal axis and further comprising a plurality of elongate resilient filaments with a woven structure secured relative to each other at proximal ends and distal ends thereof, wherein the resilient permeable shell is an elastically self-expanding resilient permeable shell for treatment of an aneurysm and is in a radially constrained elongated state configured for delivery that is elastically collapsed and restrained within the microcatheter with the thin woven filaments extending longitudinally from the proximal end to the distal end adjacent each other along a length of the filaments; and the permeable shell having a globular configuration with the woven filaments forming the resilient permeable shell in a smooth path radially expanded from the longitudinal axis between the proximal end and distal end including a plurality of openings in the shell formed between the woven filaments; and wherein in the expanded state of the elastically self-expanding resilient permeable shell the distal end has a reverse bend in an everted recessed configuration such that secured ends of the filaments are withdrawn axially within the nominal contour of the permeable shell structure, characterized in that the plurality of elongate resilient filaments include large filaments and small filaments of at least two different transverse dimensions, and in the expanded state of the elastically self-expanding resilient permeable shell the proximal end has a reverse bend in an everted recessed configuration such that secured ends of the filaments are withdrawn axially within the nominal contour of the permeable shell structure, the two everted ends establishing a globular and longitudinally shortened configuration.