NWT. Meet the Sylvie Sweater collection, a new trio of sweaters designed to carry your wardrobe (and keep you warm) all fall and winter long. Crafted from mid-weight, extra-fine merino wool, they feature details brimming with our signature Hill House polish: a subtle puff sleeve, and princess seams woven into the knit to create a flattering, slim look that’s ideal for layering. The Sylvie Sweater has a slightly longer length for extra coverage. About the Fabric Our sweater collection is woven from 100% extra-fine merino wool, a biodegradable, cruelty-free material that’s naturally moisture-wicking and wonderfully soft to the touch. They’re woven in a medium weight, making them light and breathable enough for warmer climates but warm enough for colder temps.