A device for treatment of a patient's vasculature, comprising: a resilient self-expanding permeable shell having a proximal end, a distal end, and a longitudinal axis, the permeable shell including a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a globular and longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments which are woven together and secured relative to each other at proximal ends and distal ends thereof, at least the distal end of the permeable shell having a reverse bend in an everted configuration such that the secured distal ends of the plurality of filaments are withdrawn axially within or below the globular shaped periphery of the permeable shell in the expanded state, the plurality of filaments having a total cross sectional area and further defining a cavity of the permeable shell, characterised in that the plurality of filaments comprises a first subset of filaments consisting essentially of nitinol (NiTi) and a second subset of filaments comprising composite filaments, the composite filaments comprising drawn filled tube wires formed of a combination of an external nitinol (NiTi) tube and a radiopaque fill wire disposed within the external tube, the radiopaque material used as the fill wire being selected from the list comprising gold, platinum, a platinum alloy such as 90% platinum/10% iridium, and tantalum, and the total cross sectional area of the radiopaque fill wires being between 11% and 30% of the total cross sectional area of the plurality of elongate filaments. a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a globular and longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments which are woven together and secured relative to each other at proximal ends and distal ends thereof, at least the distal end of the permeable shell having a reverse bend in an everted configuration such that the secured distal ends of the plurality of filaments are withdrawn axially within or below the globular shaped periphery of the permeable shell in the expanded state, the plurality of filaments having a total cross sectional area and further defining a cavity of the permeable shell, characterised in that the plurality of filaments comprises a first subset of filaments consisting essentially of nitinol (NiTi) and a second subset of filaments comprising composite filaments, the composite filaments comprising drawn filled tube wires formed of a combination of an external nitinol (NiTi) tube and a radiopaque fill wire disposed within the external tube, the radiopaque material used as the fill wire being selected from the list comprising gold, platinum, a platinum alloy such as 90% platinum/10% iridium, and tantalum, and the total cross sectional area of the radiopaque fill wires being between 11% and 30% of the total cross sectional area of the plurality of elongate filaments. the composite filaments comprising drawn filled tube wires formed of a combination of an external nitinol (NiTi) tube and a radiopaque fill wire disposed within the external tube, the radiopaque material used as the fill wire being selected from the list comprising gold, platinum, a platinum alloy such as 90% platinum/10% iridium, and tantalum, and the total cross sectional area of the radiopaque fill wires being between 11% and 30% of the total cross sectional area of the plurality of elongate filaments.