This double-knit wool diaper cover is made from lovely, soft organic wool that is ideal for even the smallest babies with sensitive skin. An excellent alternative to synthetic covers, wool soakers are naturally antibacterial and provide excellent moisture regulation. Wool wicks moisture away from the skin and can absorb up to one third of its weight in moisture and return it to the environment. Once it is prepped and ready for use, you will have no leaks at all with this wool cover, making it an excellent choice for night time. These covers can be used over any pre-fold or fitted cloth diaper, and the high knitted waistband provides a nice fit over any type of diaper, no matter how bulky or high-fitting the diaper is. This soft ribbed waist band also keeps your baby"s tummy and back warm and cozy throughout the night. The thick double-knit wool is perfect for night time use. Disana wool covers are wonderful for night time and once properly prepared (washed and lanolized), your baby should never have leak while wearing this cover. Size/ Fit: These covers will shrink a bit after washing, so it"s not a bad idea to size up. The style of these covers are similar to our Engel double-knit nappy covers but have a slightly different shape. The legs on disana covers are a bit more snug than the Engel covers, which is nice for containing leaks, but do keep this in mind if your baby has chunkier legs.