What is the outer shell made of?
The best material for the outer shell of a down duvet is 100% cotton, which repels dust and is breathable, permitting air to pass through to the down. SWISS SLEEP SYSTEM® duvets are made from Sarcenet, a very fine, high-quality cotton weave that feels soft and silky. Cold climate: If the down comes from a cold climate, it has undergone many winter seasons. The down on the bird’s breast grows more dense and larger, increasing its capacity to absorb air. You can visually test the quality of down by pressing on a pillow or duvet with your hand. Look to see how easily the product recovers its original shape with you remove your hand. This is an indication of how well the down absorbs air. The more elastic the product (the more quickly it resumes its original shape), the better it will insulate to maintain a consistent, comfortable temperature. Mature birds: Down from mature birds has matured for several years, making it less fragile and longer lasting, which makes for a more durable produc
