Balancing warmth and breathability for nights of deepest sleep, the AlphaWoolLinen Duvet keeps you cozy without overheating, using plush Lavalan wool batting for warmth and moisture management which is quilted with two layers of Polartec Alpha 60 military grade non-migrating insulation. High loft & vented performance means comfort. The exterior is 100% European grown linen providing additional breathability and natural softness.