The absorbent covering is made out of good quality fabric with sufficient porosity to meet the absorbency requirement. The absorbent filler layer is made free of water soluble colouring matter and does not contain extraneous material. The protective barrier is liquid resistant which prevents wetting of outer surface. It is smooth, soft & does not contain any odour. It is free from Enterobacteriaceae, Staphylococcus aureus & meets the microbiological requirement tests.