Abstract: An expandable last (2) for furnishing footwear (110) with an insert (100) includes an expansion assembly (40); an expandable shell (6), arranged around the expansion assembly (40); and a liquid chamber (8) within the expandable shell (6); wherein the expandable last (2) is insertable into the footwear (110) through a collar of the footwear (110) and wherein the expandable shell (6) is configured to expand for pressing the insert (100) towards an inside of the footwear (110); and wherein the expansion assembly (40) is configured to adapt its extension for exerting localized pressure onto the expandable shell (6) towards the inside of the footwear (110).

Abstract: A method for waterproofing footwear (2), the footwear (2) including an upper assembly (4) having an outer construction (6) and a sole (8), includes providing a waterproof, breathable bootie (10) having a waterproof, breathable laminate construction, the waterproof, breathable laminate construction comprising a functional layer (54) and at least one textile layer (56, 58); inserting the waterproof, breathable bootie (10) into an inner space (12) of the outer construction (6) and the sole (8), when the outer construction (6) and the sole (8) are in an assembled state; and fixing the waterproof, breathable bootie (10) in position in the inner space (12) of the outer construction (6) and the sole (8).