We stock a range of inserts to provide absorbency in modern cloth nappies. Depending on the urine output of your child, you may need to use more than one insert together in each nappy. Inserts made from natural fibre (like hemp, bamboo, and cotton) are good for night use or naps. Inserts with microfibre (polyester) can be prone to compression leaks. Compression leaks occur when liquid is squeezed out like a sponge and cause leaks.