A well-made winter sweater earns its place in your wardrobe. It's the layer you reach for on cold mornings, the piece that travels with you through seasons, the garment that somehow feels like home. But the materials that make knitwear so comforting come with environmental costs that vary enormously—from devastating overgrazing to near-zero impact recycling processes. The good news is that choosing sustainably doesn't mean sacrificing warmth, softness, or durability. Some of