The Erwin M. Perfekta is a white duvet measuring 140 x 200 cm, designed to provide a balanced sleeping environment. Its filling consists of an equal blend of 50% semi-white new goose feathers and 50% semi-white new goose down, categorized as Class 1. To ensure the filling remains evenly distributed and doesn't shift during use, the duvet features a cassette quilt construction that is stitched throughout. The outer cover is made from 100% cotton fine ticking, which is specifically engineered to be feather-proof. This high-quality fabric, combined with the Downpass certification, ensures a secure and reliable build. For those with sensitivities, the materials are chosen to be mite-proof and suitable for allergy sufferers. Safety is also addressed through the EN ISO 12952-1 cigarette glow test, which the product has successfully passed. Maintaining the duvet is straightforward, as it can be washed at 60 °C and tumble dried on a gentle setting. To preserve the integrity of the cotton and filling, you should avoid using chlorine bleach or dry-cleaning the item.