The Alpine Duvet offers reliable comfort and warmth at an accessible entry point. Its 330 thread count, 100% cotton shell is smooth, breathable, and durable for superior downproofness. Filled with 600 loft white duck down, it offers balanced warmth and comfortable loft, and is available in three different weights to suit your sleep preferences and climate. Key Points: Warmth: Summer - 125 g/m², 4 Seasons - 165 g/m², Winter - 205 g/m² Fill: White Duck Down, RDS Certified, Super Clean Rated, Hypoallergenic Loft: 600+ Shell: 330 Thread count, 100% Cotton Straight Weave, Down Proof Cotton Shell Construction: Box Baffle for even down distribution and consistent insulation, Tie-down 4-Corner Loops that match with our duvet cover's corner ties to keep everything in place