Charles TyrwhittThe exceptional softness of our understated jumper comes from garment washed and Wool mark certified Merino. This extra refined wool is naturally breathable and, as it's biodegradable, makes a planet friendly choice. Active fibers react to changes in your body's temperature, keeping you cool or warming you up. Over time, these supple fibers mould themselves to your body for a gently fitted look. To capture a sophisticated casual look, wear this