Cassum Half Zip Sweater - StormA signature silhouette, reimagined in our most luxurious fibre blend. The Cassum Half Zip honours the style were known for, effortless, versatile, quietly refined. Crafted from a considered blend of Merino, Possum, Cashmere and Silk, it delivers remarkable warmth without weight. Soft against the skin and naturally breathable, it invites all day wear, whether layered beneath a coat on crisp mornings or worn alone as the air cools toward evening.