For children who are heavy wetters, or who go for a long time between changes (e.g. at night) the cover might need extra layers to prevent leakage. This insert consists of 2 layers of 100% merino wool flannel. Simply lanolize the insert and place it on the inside of the cover or shorties. The additional insert has the added benefit of protecting the main cover from stains. Dimensions: approx. 22.5 x 12.5 cm Care Instructions: Hand washing using wool shampoo. Ventilate after each use. Detailed information about washing you will find in the leaflet joined to your cover.