It is an old model or a product that we can no longer order at the manufacturer.
The Silk Liner Mummy, designed by Ferrino, is a Sleeping Bag Liner (or travel sheet) made of pure silk, ideal for enhancing the hygiene and thermal comfort of your sleeping bag. Additionally, the Silk Liner Mummy can also serve as a simple sheet to allow you to sleep like at home in a refuge, bivouac, or youth hostel. Perfect for a good night's sleep after a day of hiking, this Ferrino Sleeping Bag Liner, with dimensions of 220 x 80 x 50 cm, has been crafted from pure silk for maximum comfort in your sleeping bag.