JW Anderson Half Zip Jumper is a midweight rib-knit layer defined by a half-zip neckline and the brand's signature oval zip puller. Ideal for smart-casual layering, it pairs easily with shirts or tees for transitional-season wear. Key attributes: Gray | Steel | Wool | Cotton | Midweight knit | Half-zip fastening | Metal zip with oval puller | Half-cardigan rib knit | High neck | Ribbed hem and cuffs | Oval zip puller with horn-effect finish | Dimensions & fit: Classic fit silhouette | Composition & care: 60% wool | 40% cotton | Read manufacturer care guidelines.