For Fall '21; Stella McCartney doubled down on her brand's initiatives last season involving an even bigger push for sustainability in the future. At 80% sustainable and accompanied by a look-by-look breakdown of the sustainability built-in each garment and accessory (which includes upcycled and overstock fabrics); this collection delivers.Cut from checked wool flannel with ribbed-knit inserts; the 'Wren' dress features a flannel shirt-inspired cut with a relaxed bodice and fitted mini skirt. Wear it solo or layered with tights and a turtleneck to mirror the brand styling.