Since 1989, New Zealand's Karen Walker has specialized in versatile pieces featuring charmingly offbeat details and inventive backstories. For our exclusive collab, we teamed up on fresh versions of her signature styles—taken from a collection that explored the world of English horticultural (and the kooky characters involved), this wide-legged dark denim jumpsuit has extra-deep side pockets, a wide sash belt and top-stitched touches.